Bump golang from 1.22.5 to 1.22.6 in /examples/httpPlusdb

Bumps golang from 1.22.5 to 1.22.6.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

examples/httpPlusdb/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.5
+FROM golang:1.22.6
 WORKDIR /app
 COPY ./*.go .
 RUN go mod init main