Add stacks-signer-tests.yml to run stacks signer unit tests in CI

.github/workflows/ci.yml

@@ -241,6 +241,29 @@ jobs:
       - check-release
     uses: ./.github/workflows/p2p-tests.yml
 
+
+  stacks-signer-tests:
+    if: |
+      needs.check-release.outputs.is_release == 'true' || (
+        github.event_name == 'workflow_dispatch' ||
+        github.event_name == 'pull_request' ||
+        github.event_name == 'merge_group' ||
+        (
+          contains('
+            refs/heads/master
+            refs/heads/develop
+            refs/heads/next
+          ', github.event.pull_request.head.ref) &&
+          github.event_name == 'push'
+        )
+      )
+    name: Stacks Signer Unit Tests
+    needs:
+      - rustfmt
+      - create-cache
+      - check-release
+    uses: ./.github/workflows/stacks-signer-tests.yml
+
   ## Test to run on a tagged release
   ##
   ## Runs when:

.github/workflows/stacks-signer-tests.yml

@@ -0,0 +1,30 @@
+## Run Stacks Signer Unit Tests
+name: Tests::Stacks Signer Unit Tests
+
+on:
+  workflow_call:
+
+env:
+  RUST_BACKTRACE: full
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 3
+  TEST_TIMEOUT: 30
+
+concurrency:
+  group: stacks-core-tests-${{ github.head_ref || github.ref || github.run_id }}
+  # Only cancel in progress if this is for a PR
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  unit-tests:
+    name: Unit Tests
+    runs-on: ubuntu-latest
+    steps:
+      ## Setup test environment
+      - name: Setup Test Environment
+        id: setup_tests
+        uses: stacks-network/actions/stacks-core/testenv@main
+
+      # Run unit tests
+      - name: Run Unit Tests
+        run: cargo test -p stacks-signer -- --nocapture --test-threads 1
+        continue-on-error: true

.github/workflows/standalone-tests.yml

@@ -25,6 +25,7 @@ on:
           - Slow Tests
           - Stacks-Core Tests
           - SBTC Tests
+          - Stacks-Signer Tests
 
 ## Set the display name to the test being run
 run-name: ${{ inputs.workflow }}
@@ -148,3 +149,19 @@ jobs:
       - create-cache
     uses: ./.github/workflows/sbtc-tests.yml
 
+  ## Runs when:
+  ##   either or of the following:
+  ##     - workflow is 'Release Tests'
+  ##     - workflow is 'CI Tests'
+  ##     - workflow is 'Stacks-Signer Tests'
+  stacks-signer-tests:
+    if: |
+      (
+        inputs.workflow == 'Release Tests' ||
+        inputs.workflow == 'CI Tests' ||
+        inputs.workflow == 'Stacks-Signer Tests'
+      )
+    name: Stacks Signer Tests
+    needs:
+      - create-cache
+    uses: ./.github/workflows/stacks-signer-tests.yml