docs: update actions and workflows documentation

[skip ci]

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: hoverkraft-bot[bot]

actions/docker/build-image/README.md

@@ -46,7 +46,7 @@ permissions:
 ## Usage
 
 ````yaml
-- uses: hoverkraft-tech/ci-github-container/actions/docker/build-image@a0bab9151cc074af9f6c8204ab42a48d2d570379 # 0.30.6
+- uses: hoverkraft-tech/ci-github-container/actions/docker/build-image@df8b445f6cc9661dcb282d897d7146a82e5f2960 # 0.31.0
   with:
     # OCI registry configuration used to pull, push and cache images.
     # Accepts either a registry hostname string (default format) or a JSON object.

actions/helm/generate-docs/README.md

@@ -35,7 +35,7 @@ Mainly using [losisin/helm-docs-github-action](https://github.com/losisin/helm-d
 ## Usage
 
 ```yaml
-- uses: hoverkraft-tech/ci-github-container/actions/helm/generate-docs@a0bab9151cc074af9f6c8204ab42a48d2d570379 # 0.30.6
+- uses: hoverkraft-tech/ci-github-container/actions/helm/generate-docs@df8b445f6cc9661dcb282d897d7146a82e5f2960 # 0.31.0
   with:
     # Working directory
     # Default: `${{ github.workspace }}`