fixes typo (#62)

Author: JBAhire

.github/workflows/merge-publish.yml

@@ -18,7 +18,7 @@ jobs:
           fetch-depth: 0
 
       - name: create checksum file
-        run: hypertrace/actions/checksum@main
+        uses: hypertrace/actions/checksum@main
 
       - name: Cache packages
         id: cache-packages

.github/workflows/pr-build.yml

@@ -20,7 +20,7 @@ jobs:
           fetch-depth: 0
 
       - name: create checksum file
-        run: hypertrace/actions/checksum@main
+        uses: hypertrace/actions/checksum@main
 
       - name: Cache packages
         id: cache-packages

.github/workflows/publish.yml

@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
 
       - name: create checksum file
-        run: hypertrace/actions/checksum@main
+        uses: hypertrace/actions/checksum@main
 
       - name: Cache packages
         id: cache-packages