chore(deps): bump golang from `20c8a94` to `f6751d8` (#5940)

Bumps golang from `20c8a94` to `f6751d8`.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile.standalone

@@ -1,6 +1,6 @@
 # This version of Dockerfile is for building without external dependencies.
 # Build a multi-platform image e.g. `docker buildx build --push --platform linux/arm64,linux/amd64 --tag external-secrets:dev --file Dockerfile.standalone .`
-FROM golang:1.25.7-alpine@sha256:20c8a94b529a9a127b6990c5e03537bd71ce3ebfdd744741e96168ac338bd862 AS builder
+FROM golang:1.25.7-alpine@sha256:f6751d823c26342f9506c03797d2527668d095b0a15f1862cddb4d927a7a4ced AS builder
 # Add metadata
 LABEL maintainer="cncf-externalsecretsop-maintainers@lists.cncf.io" \
       description="External Secrets Operator is a Kubernetes operator that integrates external secret management systems"