Bump golang from efaccb5 to 2981696

Bumps golang from `efaccb5` to `2981696`.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.26.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Dockerfile

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM golang:1.26.3@sha256:efaccb5b497e90df3ebe5216cc25cd9f98e73874e2d638b56e38d4a3f098c41c as builder
+FROM golang:1.26.3@sha256:2981696eed011d747340d7252620932677929cce7d2d539602f56a8d7e9b660b as builder
 WORKDIR /workspace
 
 # Run this with docker build --build_arg $(go env GOPROXY) to override the goproxy