Bump golang from 1.21.9 to 1.23.2

Bumps golang from 1.21.9 to 1.23.2.

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

Signed-off-by: dependabot[bot] <[email protected]>

Dockerfile

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM golang:1.21.9@sha256:81811f8a883e238666dbadee6928ae2902243a3cd3f3e860f21c102543c6b5a7 as builder
+FROM golang:1.23.2@sha256:adee809c2d0009a4199a11a1b2618990b244c6515149fe609e2788ddf164bd10 as builder
 WORKDIR /workspace
 
 # Run this with docker build --build_arg $(go env GOPROXY) to override the goproxy