chore: added s2 foundations workflow action support

.github/workflows/sync-foundations.yml

@@ -0,0 +1,17 @@
+name: SYNC FOUNDATIONS
+
+on:
+  workflow_dispatch
+
+jobs:
+  check_should_run:      
+    uses: ./.github/workflows/_diff-should-run.yml
+    secrets: inherit
+  diff_do:
+    needs: [check_should_run]
+    if: ${{ needs.check_should_run.outputs.condition == 'true' && (github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch')}}
+    uses: ./.github/workflows/_diff-trigger-sync.yml
+    with:
+      source: foundations                         # the tokens-studio data we want to compare (folder prefix in the repo)
+      branch: snapshot-s2-foundations             # the spectrum-tokens data we want to compare (branch of the repo)
+    secrets: inherit

.github/workflows/test-foundations.yml

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+name: TEST FOUNDATIONS
+
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches:
+      - main                                          # only run on PRs targetting main
+    paths:
+      - 'src/tokens-studio/foundations/**'            # only run when files in these paths change
+
+jobs:
+  check_should_run:      
+    uses: ./.github/workflows/_diff-should-run.yml
+    secrets: inherit
+  diff_test:
+    needs: [check_should_run]
+    if: ${{ needs.check_should_run.outputs.condition == 'true' }}
+    uses: ./.github/workflows/_diff-trigger-test.yml
+    with:
+      source: foundations                             # the tokens-studio data we want to compare (folder prefix in the repo)
+      branch: snapshot-s2-foundations                 # the spectrum-tokens data we want to compare (branch of the repo)
+    secrets: inherit