Update to go1.21

Signed-off-by: Allen Ray <alray@redhat.com>

.github/workflows/e2e-arm64-template.yaml

@@ -12,7 +12,7 @@ jobs:
     # this is to prevent the job to run at forked projects
     if: github.repository == 'etcd-io/etcd'
     runs-on: [self-hosted, Linux, ARM64]
-    container: golang:1.20-bookworm
+    container: golang:1.21-bookworm
     defaults:
       run:
         shell: bash

.github/workflows/e2e.yaml

@@ -6,7 +6,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     container:
-      image: golang:1.20-bookworm
+      image: golang:1.21-bookworm
     defaults:
       run:
         shell: bash

.github/workflows/grpcproxy.yaml

@@ -5,7 +5,7 @@ permissions: read-all
 jobs:
   test:
     runs-on: ubuntu-latest
-    container: golang:1.20-bookworm
+    container: golang:1.21-bookworm
     defaults:
       run:
         shell: bash

.github/workflows/robustness-template.yaml

@@ -27,7 +27,7 @@ jobs:
     timeout-minutes: 210
     runs-on: ${{ fromJson(inputs.runs-on) }}
     container:
-      image: golang:1.20-bookworm
+      image: golang:1.21-bookworm
       # Required for mounting fuse lazyfs
       options: --privileged
     defaults:

.github/workflows/tests-arm64-template.yaml

@@ -17,7 +17,7 @@ jobs:
     # this is to prevent the job to run at forked projects
     if: github.repository == 'etcd-io/etcd'
     runs-on: [self-hosted, Linux, ARM64]
-    container: golang:1.20-bookworm
+    container: golang:1.21-bookworm
     defaults:
       run:
         shell: bash

.github/workflows/tests.yaml

@@ -5,7 +5,7 @@ permissions: read-all
 jobs:
   test:
     runs-on: ubuntu-latest
-    container: golang:1.20-bookworm
+    container: golang:1.21-bookworm
     defaults:
       run:
         shell: bash