fix(ci): compile firmware-action in examples

- we had some breaking changes in firmware-action since last release
- example tests need to know if to download firmware-action executable
  from release, or if to compile on the fly
- problem is that the example CI checks for changes of current HEAD vs
  MAIN, not vs latest release
- this patch should fix this behavior

Signed-off-by: AtomicFS <[email protected]>

.github/workflows/example.yml

@@ -80,9 +80,15 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Get latest release
+        id: semver
+        uses: ietf-tools/semver-action@v1
+        with:
+          token: ${{ github.token }}
       - uses: dorny/paths-filter@v3
         id: filter
         with:
+          ref: ${{ steps.semver.outputs.semver.current }}
           filters: |
             action:
               - 'action/**'