update large runners to 22.04

we don't use debian 11 anymore, so we don't need the glibc compat
that 20.04 provided.

Signed-off-by: Appu Goundan <appu@google.com>

.github/workflows/ci.yaml

@@ -21,7 +21,7 @@ jobs:
 
   ci-build-test:
     name: CI build and unit test
-    runs-on: distroless-ci-large-ubuntu-20.04 # custom runner most compatible with debian 11
+    runs-on: distroless-ci-large-ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Mount bazel caches
@@ -59,7 +59,7 @@ jobs:
 
   ci-images:
     name: CI image tests
-    runs-on: distroless-ci-large-ubuntu-20.04 # most compatible with debian 11
+    runs-on: distroless-ci-large-ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Mount bazel caches

.github/workflows/image-check.yaml

@@ -11,7 +11,7 @@ concurrency:
 
 jobs:
   diff:
-    runs-on: distroless-ci-large-ubuntu-20.04 # custom runner most compatible with debian 11
+    runs-on: distroless-ci-large-ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Set up Go