chore(deps): bump the actions group with 2 updates (#8269)

Bumps the actions group with 2 updates: [8398a7/action-slack](https://github.com/8398a7/action-slack) and [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer).


Updates `8398a7/action-slack` from 3.18.0 to 3.19.0
- [Release notes](https://github.com/8398a7/action-slack/releases)
- [Commits](8398a7/action-slack@1750b50...77eaa4f)

Updates `sigstore/cosign-installer` from 3.9.2 to 3.10.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@d58896d...d7543c9)

---
updated-dependencies:
- dependency-name: 8398a7/action-slack
  dependency-version: 3.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
- dependency-name: sigstore/cosign-installer
  dependency-version: 3.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/notifications.yml

@@ -49,7 +49,7 @@ jobs:
             }
 
       - name: Send Notification
-        uses: 8398a7/action-slack@1750b5085f3ec60384090fb7c52965ef822e869e # v3.18.0
+        uses: 8398a7/action-slack@77eaa4f1c608a7d68b38af4e3f739dcd8cba273e # v3.19.0
         with:
           status: custom
           custom_payload: |

.github/workflows/release.yml

@@ -452,7 +452,7 @@ jobs:
         if: ${{ needs.variables.outputs.binary_cache_sign_hit != 'true' }}
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
+        uses: sigstore/cosign-installer@d7543c93d881b35a8faa02e8e3605f69b7a1ce62 # v3.10.0
         if: ${{ needs.variables.outputs.binary_cache_sign_hit != 'true' }}
 
       - name: Create Tarballs
@@ -636,7 +636,7 @@ jobs:
           echo "sha_long=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
 
       - name: Send Notification
-        uses: 8398a7/action-slack@1750b5085f3ec60384090fb7c52965ef822e869e # v3.18.0
+        uses: 8398a7/action-slack@77eaa4f1c608a7d68b38af4e3f739dcd8cba273e # v3.19.0
         with:
           status: custom
           custom_payload: |

.github/workflows/updates-notification.yml

@@ -45,7 +45,7 @@ jobs:
           echo "sha_long=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
 
       - name: Send Notification
-        uses: 8398a7/action-slack@1750b5085f3ec60384090fb7c52965ef822e869e # v3.18.0
+        uses: 8398a7/action-slack@77eaa4f1c608a7d68b38af4e3f739dcd8cba273e # v3.19.0
         with:
           status: custom
           custom_payload: |