feat: use composite action to generate checksums for github-release

Author: BowTiedDevOps

.github/workflows/github-release.yml

@@ -59,12 +59,7 @@ jobs:
       ## Generate a checksums file to be added to the release page
       - name: Generate Checksums
         id: generate_checksum
-        uses: jmgilman/actions-generate-checksum@24a35957fba81c6cbaefeb1e3d59ee56e3db5077 # v1.0.0
-        with:
-          method: sha512
-          output: CHECKSUMS.txt
-          patterns: |
-            release/*.zip
+        uses: stacks-network/actions/generate-checksum@main
 
       ## Upload the release archives with the checksums file
       - name: Upload Release