Update canonical/data-platform-workflows action to v31 (#13)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -12,11 +12,11 @@ on:
 jobs:
   lint:
     name: Lint
-    uses: canonical/data-platform-workflows/.github/workflows/lint.yaml@v30.1.3
+    uses: canonical/data-platform-workflows/.github/workflows/lint.yaml@v31.0.1
 
   build:
     name: Build snap
-    uses: canonical/data-platform-workflows/.github/workflows/build_snap.yaml@v30.1.3
+    uses: canonical/data-platform-workflows/.github/workflows/build_snap.yaml@v31.0.1
 
   smoke:
     name: Smoke test snap

.github/workflows/release.yaml

@@ -17,13 +17,13 @@ on:
 jobs:
   build:
     name: Build snap
-    uses: canonical/data-platform-workflows/.github/workflows/build_snap.yaml@v30.1.3
+    uses: canonical/data-platform-workflows/.github/workflows/build_snap.yaml@v31.0.1
 
   release:
     name: Release snap
     needs:
       - build
-    uses: canonical/data-platform-workflows/.github/workflows/release_snap.yaml@v30.1.3
+    uses: canonical/data-platform-workflows/.github/workflows/release_snap.yaml@v31.0.1
     with:
       channel: ${{ github.ref_name }}
       artifact-prefix: ${{ needs.build.outputs.artifact-prefix }}