Use os_patch_level in cache key instead of current date

Cache key now: kernel_version.sublevel-os_patch_level
Example: 5.10.43-2021-08 (from your JSON config)

.github/workflows/build.yml

@@ -213,7 +213,7 @@ jobs:
       uses: ./.github/actions/cache-restore
       with:
         cache_path: /home/runner/.ccache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: ccache-cache
         compression_level: 9
         restore_keys: |
@@ -229,7 +229,7 @@ jobs:
       uses: ./.github/actions/cache-restore
       with:
         cache_path: /home/runner/.ld_cache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: lto-cache
         compression_level: 9
         restore_keys: |
@@ -246,7 +246,7 @@ jobs:
       uses: ./.github/actions/cache-restore
       with:
         cache_path: /home/runner/.cache/bazel
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: bazel-cache
         compression_level: 9
         restore_keys: |
@@ -263,7 +263,7 @@ jobs:
       uses: ./.github/actions/cache-restore
       with:
         cache_path: /home/runner/.ld_cache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: lto-cache
         compression_level: 9
         restore_keys: |
@@ -305,7 +305,7 @@ jobs:
       uses: ./.github/actions/cache-save
       with:
         cache_path: /home/runner/.ccache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: ccache-cache
         compression_level: 9
         github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -318,7 +318,7 @@ jobs:
       uses: ./.github/actions/cache-save
       with:
         cache_path: /home/runner/.ld_cache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: lto-cache
         compression_level: 9
         github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -332,7 +332,7 @@ jobs:
       uses: ./.github/actions/cache-save
       with:
         cache_path: /home/runner/.cache/bazel
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: bazel-cache
         compression_level: 9
         github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -346,7 +346,7 @@ jobs:
       uses: ./.github/actions/cache-save
       with:
         cache_path: /home/runner/.ld_cache
-        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-$(date +%m)
+        cache_key: ${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
         cache_bucket: lto-cache
         compression_level: 9
         github_token: ${{ secrets.GITHUB_TOKEN }}