Update docker-build action with use-cache input (#4079)

## Motivation and Context
<!--- Why is this change required? What problem does it solve? -->
<!--- If it fixes an open issue, please link to the issue here -->
Makes the gradle cache step in the composite `docker-build` action
conditional and disables it for release builds.

## Description
<!--- Describe your changes in detail -->

## Testing
<!--- Please describe in detail how you tested your changes -->
<!--- Include details of your testing environment, and the tests you ran
to -->
<!--- see how your change affects other areas of the code, etc. -->


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.github/actions/docker-build/action.yml

@@ -12,11 +12,18 @@ inputs:
   action-arguments:
     description: Arguments to pass to the action
     required: false
+  use_cache:
+    description: Whether to use the gradle cache
+    type: boolean
+    required: false
+    default: true
+
 runs:
   using: composite
   steps:
-  - uses: actions/cache@v4
-    name: Gradle Cache
+  - name: Gradle Cache
+    if: ${{ github.event.inputs.use_cache == 'true' }}
+    uses: actions/cache@v4
     with:
       path: |
         gradle/caches

.github/workflows/release.yml

@@ -124,6 +124,7 @@ jobs:
       uses: ./smithy-rs/.github/actions/docker-build
       with:
         action: check-semver-hazards
+        use_cache: false
 
   get-or-create-release-branch:
     name: Get or create a release branch
@@ -185,6 +186,7 @@ jobs:
       uses: ./smithy-rs/.github/actions/docker-build
       with:
         action: generate-smithy-rs-release
+        use_cache: false
     - name: Download all artifacts
       uses: ./smithy-rs/.github/actions/download-all-artifacts
         # This step is not idempotent, as it pushes release artifacts to the `smithy-rs-release-1.x.y` branch. However,