chore(deps): update docker.io/library/golang docker tag to v1.21.5

Signed-off-by: cilium-renovate[bot] <134692979+cilium-renovate[bot]@users.noreply.github.com>

Dockerfile

@@ -18,14 +18,14 @@ ARG TARGETARCH
 RUN make tetragon-bpf LOCAL_CLANG=1 TARGET_ARCH=$TARGETARCH
 
 # Second builder (cross-)compile tetragon and tetra
-FROM --platform=$BUILDPLATFORM docker.io/library/golang:1.21.4@sha256:9baee0edab4139ae9b108fffabb8e2e98a67f0b259fd25283c2a084bd74fea0d as tetragon-builder
+FROM --platform=$BUILDPLATFORM docker.io/library/golang:1.21.5@sha256:58e14a93348a3515c2becc54ebd35302128225169d166b7c6802451ab336c907 as tetragon-builder
 WORKDIR /go/src/github.com/cilium/tetragon
 ARG TETRAGON_VERSION TARGETARCH
 COPY . .
 RUN make VERSION=$TETRAGON_VERSION TARGET_ARCH=$TARGETARCH tetragon tetra
 
 # Third builder (cross-)compile a stripped gops
-FROM --platform=$BUILDPLATFORM docker.io/library/golang:1.21.4-alpine@sha256:70afe55365a265f0762257550bc38440e0d6d6b97020d3f8c85328f00200dd8e as gops
+FROM --platform=$BUILDPLATFORM docker.io/library/golang:1.21.5-alpine@sha256:5c1cabd9a3c6851a3e18735a2c133fbd8f67fe37eb3203318b7af2ffd2547095 as gops
 ARG TARGETARCH
 RUN apk add --no-cache git \
 # renovate: datasource=github-releases depName=google/gops

Dockerfile.dev

@@ -9,7 +9,7 @@ FROM quay.io/cilium/cilium-bpftool@sha256:1832b32d118e7006ea2ce530b14ae5b28acd55
 COPY . ./
 
 
-FROM docker.io/library/golang:1.21.4@sha256:9baee0edab4139ae9b108fffabb8e2e98a67f0b259fd25283c2a084bd74fea0d
+FROM docker.io/library/golang:1.21.5@sha256:58e14a93348a3515c2becc54ebd35302128225169d166b7c6802451ab336c907
 RUN apt-get update -y &&    \
     apt-get upgrade -y &&   \
     apt-get install -y      \

Dockerfile.operator

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 ARG BASE_IMAGE=scratch
-ARG GOLANG_IMAGE=docker.io/library/golang:1.21.4@sha256:9baee0edab4139ae9b108fffabb8e2e98a67f0b259fd25283c2a084bd74fea0d
+ARG GOLANG_IMAGE=docker.io/library/golang:1.21.5@sha256:58e14a93348a3515c2becc54ebd35302128225169d166b7c6802451ab336c907
 ARG ALPINE_IMAGE=docker.io/library/alpine:3.18.5@sha256:34871e7290500828b39e22294660bee86d966bc0017544e848dd9a255cdf59e0
 
 # BUILDPLATFORM is an automatic platform ARG enabled by Docker BuildKit.

Dockerfile.test

@@ -11,7 +11,7 @@ RUN apt-get install -y linux-libc-dev
 COPY . ./
 RUN make tetragon-bpf && pwd
 
-FROM docker.io/library/golang:1.21.4@sha256:9baee0edab4139ae9b108fffabb8e2e98a67f0b259fd25283c2a084bd74fea0d
+FROM docker.io/library/golang:1.21.5@sha256:58e14a93348a3515c2becc54ebd35302128225169d166b7c6802451ab336c907
 RUN apt-get update
 RUN apt-get install -y linux-libc-dev rpm2cpio cpio git flex bison autoconf libelf-dev bc netcat-traditional
 WORKDIR /go/src/github.com/cilium/tetragon

Makefile.cli

@@ -3,7 +3,7 @@
 
 CLI_GO_BUILD = CGO_ENABLED=0 $(GO) build
 # renovate: datasource=docker
-GO_IMAGE = docker.io/library/golang:1.21.4-alpine@sha256:70afe55365a265f0762257550bc38440e0d6d6b97020d3f8c85328f00200dd8e
+GO_IMAGE = docker.io/library/golang:1.21.5-alpine@sha256:5c1cabd9a3c6851a3e18735a2c133fbd8f67fe37eb3203318b7af2ffd2547095
 TARGET=tetra
 
 RELEASE_UID ?= $(shell id -u)