fix: merging sbom docs is broken

stacker frequently uses derived image builds and in turn relies on sbom
doc merges to be accurate.

Original code here only does a map merge which is incorrect.

Signed-off-by: Ramkumar Chinchani <rchincha@cisco.com>

go.mod

@@ -15,9 +15,9 @@ require (
 	github.com/sassoftware/go-rpmutils v0.2.0
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spdx/tools-golang v0.5.3
-	github.com/spf13/cobra v1.7.0
+	github.com/spf13/cobra v1.8.0
 	pault.ag/go/debian v0.15.0
-	sigs.k8s.io/bom v0.5.2-0.20231020154325-c94debbb2690
+	sigs.k8s.io/bom v0.6.0
 )
 
 require (
@@ -35,7 +35,6 @@ require (
 	github.com/Microsoft/hcsshim v0.10.0-rc.7 // indirect
 	github.com/ProtonMail/go-crypto v0.0.0-20230828082145-3c4c8a2d2371 // indirect
 	github.com/acobaugh/osrelease v0.1.0 // indirect
-	github.com/acomagu/bufpipe v1.0.4 // indirect
 	github.com/adrg/xdg v0.4.0 // indirect
 	github.com/anchore/clio v0.0.0-20231016125544-c98a83e1c7fc // indirect
 	github.com/anchore/fangs v0.0.0-20230818131516-2186b10924fe // indirect
@@ -78,10 +77,10 @@ require (
 	github.com/felixge/fgprof v0.9.3 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/github/go-spdx/v2 v2.2.0 // indirect
-	github.com/glebarez/go-sqlite v1.21.2 // indirect
+	github.com/glebarez/go-sqlite v1.22.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.5.0 // indirect
-	github.com/go-git/go-git/v5 v5.9.0 // indirect
+	github.com/go-git/go-git/v5 v5.11.0 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-restruct/restruct v1.2.0-alpha // indirect
@@ -90,11 +89,11 @@ require (
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
-	github.com/google/go-containerregistry v0.16.1 // indirect
+	github.com/google/go-containerregistry v0.17.0 // indirect
 	github.com/google/licensecheck v0.3.1 // indirect
 	github.com/google/licenseclassifier/v2 v2.0.0 // indirect
 	github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26 // indirect
-	github.com/google/uuid v1.3.1 // indirect
+	github.com/google/uuid v1.5.0 // indirect
 	github.com/gookit/color v1.5.4 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
@@ -114,7 +113,7 @@ require (
 	github.com/klauspost/pgzip v1.2.6 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/mholt/archiver/v3 v3.5.1 // indirect
@@ -152,7 +151,7 @@ require (
 	github.com/sergi/go-diff v1.3.1 // indirect
 	github.com/shibumi/go-pathspec v1.3.0 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
-	github.com/skeema/knownhosts v1.2.0 // indirect
+	github.com/skeema/knownhosts v1.2.1 // indirect
 	github.com/spf13/afero v1.10.0 // indirect
 	github.com/spf13/cast v1.5.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
@@ -176,28 +175,28 @@ require (
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/otel v1.14.0 // indirect
 	go.opentelemetry.io/otel/trace v1.14.0 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
 	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 // indirect
-	golang.org/x/mod v0.13.0 // indirect
-	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sync v0.4.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/term v0.13.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
-	golang.org/x/tools v0.13.0 // indirect
+	golang.org/x/mod v0.14.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/term v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/tools v0.17.0 // indirect
 	golang.org/x/tools/go/vcs v0.1.0-deprecated // indirect
-	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
+	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
 	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
 	google.golang.org/grpc v1.55.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	modernc.org/libc v1.24.1 // indirect
-	modernc.org/mathutil v1.5.0 // indirect
-	modernc.org/memory v1.6.0 // indirect
-	modernc.org/sqlite v1.26.0 // indirect
+	modernc.org/libc v1.37.6 // indirect
+	modernc.org/mathutil v1.6.0 // indirect
+	modernc.org/memory v1.7.2 // indirect
+	modernc.org/sqlite v1.28.0 // indirect
 	pault.ag/go/topsort v0.1.1 // indirect
-	sigs.k8s.io/release-utils v0.7.5 // indirect
+	sigs.k8s.io/release-utils v0.7.7 // indirect
 )