ci(deps): bump golang from 1.21.6-alpine to 1.22rc2-alpine

Bumps golang from 1.21.6-alpine to 1.22rc2-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21.6-alpine as build_env
+FROM golang:1.22rc2-alpine as build_env
 
 # Copy the source from the current directory to the Working Directory inside the container
 WORKDIR /app