chore(deps): bump golang from `d9b2e14` to `98e6cff` (#5907)

Bumps golang from `d9b2e14` to `98e6cff`.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.6
  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:1.25.6-alpine@sha256:d9b2e14101f27ec8d09674cd01186798d227bb0daec90e032aeb1cd22ac0f029 AS builder
+FROM golang:1.25.6-alpine@sha256:98e6cffc31ccc44c7c15d83df1d69891efee8115a5bb7ede2bf30a38af3e3c92 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"