chore(deps): bump golang from 1.25.5 to 1.26rc2 (#5837)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Gergely Bräutigam <skarlso777@gmail.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:1.25.5-alpine@sha256:ac09a5f469f307e5da71e766b0bd59c9c49ea460a528cc3e6686513d64a6f1fb AS builder
+FROM golang:1.25.6-alpine@sha256:d9b2e14101f27ec8d09674cd01186798d227bb0daec90e032aeb1cd22ac0f029 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"

tilt.debug.dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25.5@sha256:6cc2338c038bc20f96ab32848da2b5c0641bb9bb5363f2c33e9b7c8838f9a208
+FROM golang:1.25.6@sha256:ce63a16e0f7063787ebb4eb28e72d477b00b4726f79874b3205a965ffd797ab2
 WORKDIR /
 COPY ./bin/external-secrets /external-secrets