With withManager

This depends on kazu-yamamoto/http2#137.
Closes #190.

.github/workflows/haskell-ci.yml

@@ -172,10 +172,15 @@ jobs:
           echo "package grapesy" >> cabal.project
           echo "    ghc-options: -Werror=missing-methods" >> cabal.project
           cat >> cabal.project <<EOF
-          constraints: network-control==0.1.2
+          constraints: network-control==0.1.3
           allow-newer: proto-lens:base
           allow-newer: proto-lens-runtime:base
 
+          source-repository-package
+            type:     git
+            location: https://github.com/edsko/http2.git
+            tag:      e753c9ff2df0a0a8cb3344d5d504dd635a90523e
+
           package grapesy
             tests:       True
             benchmarks:  True

cabal.project

@@ -5,7 +5,12 @@ package grapesy
   benchmarks: True
   flags: +build-demo +build-stress-test +snappy
 
-constraints: network-control==0.1.2
+constraints: network-control==0.1.3
+
+source-repository-package
+  type: git
+  location: https://github.com/edsko/http2.git
+  tag: e753c9ff2df0a0a8cb3344d5d504dd635a90523e
 
 --
 -- ghc 9.10

cabal.project.ci

@@ -6,7 +6,12 @@ package grapesy
   flags: +build-demo +build-stress-test +snappy +strace
   ghc-options: -Werror
 
-constraints: network-control==0.1.2
+constraints: network-control==0.1.3
+
+source-repository-package
+  type: git
+  location: https://github.com/edsko/http2.git
+  tag: e753c9ff2df0a0a8cb3344d5d504dd635a90523e
 
 --
 -- ghc 9.10

util/Network/GRPC/Util/HTTP2.hs

@@ -55,11 +55,7 @@ withConfigForInsecure ::
   -> (Server.Config -> IO a)
   -> IO a
 withConfigForInsecure sock k = do
-    -- TODO: <https://github.com/well-typed/grapesy/issues/190>
-    -- We should be using withManager instead.
-    bracket
-        (TimeManager.initialize (disableTimeout * 1_000_000))
-        (\_ -> return ()) $ \mgr -> do
+    TimeManager.withManager (disableTimeout * 1_000_000) $ \mgr -> do
       -- @recv@ does not provide a way to deallocate a buffer pool, and
       -- @http2-tls@ (in @freeServerConfig@) does not attempt to deallocate it.
       -- We follow suit here.