Add dependabot to sv2

.github/dependabot.yml

@@ -0,0 +1,22 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/pool-apps"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "stratum-core"
+
+  - package-ecosystem: "cargo"
+    directory: "/miner-apps"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "stratum-core"
+
+  - package-ecosystem: "cargo"
+    directory: "/integration-tests"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "stratum-core"

.github/workflows/lockfiles.yaml

@@ -30,45 +30,4 @@ jobs:
           cargo build --manifest-path=integration-tests/Cargo.toml --locked
 
           # while bitcoin-core-sv2 crate is still a lib crate, no need to lock it so we skip it here
-          # whenever we implement a binary executable for bitcoin-core-sv2, we will need to cover it here
-
-  stratum-freshness:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Get latest stratum commit on main
-        id: stratum
-        run: |
-          LATEST=$(git ls-remote https://github.com/stratum-mining/stratum refs/heads/main | cut -f1)
-          echo "latest_sha=$LATEST" >> "$GITHUB_OUTPUT"
-          echo "Latest stratum main commit: $LATEST"
-
-      - name: Check lockfiles pin the latest stratum-core
-        run: |
-          LATEST="${{ steps.stratum.outputs.latest_sha }}"
-          FAILED=0
-
-          for lockfile in pool-apps/Cargo.lock miner-apps/Cargo.lock integration-tests/Cargo.lock; do
-            PINNED=$(grep -oP 'git\+https://github\.com/stratum-mining/stratum\?branch=main#\K[0-9a-f]+' "$lockfile" | head -1)
-
-            if [ -z "$PINNED" ]; then
-              echo "WARNING: No stratum-core git pin found in $lockfile"
-              continue
-            fi
-
-            if [ "$PINNED" != "$LATEST" ]; then
-              echo "FAIL: $lockfile is stale (pinned=$PINNED, latest=$LATEST)"
-              FAILED=1
-            else
-              echo "OK: $lockfile is up to date ($PINNED)"
-            fi
-          done
-
-          if [ "$FAILED" -eq 1 ]; then
-            echo ""
-            echo "Lockfiles are not pinned to the latest stratum-core commit."
-            echo "Run 'cargo update -p stratum-core' in each workspace to update them."
-            exit 1
-          fi
+          # whenever we implement a binary executable for bitcoin-core-sv2, we will need to cover it here