github/workflows: Run webassembly and zephyr workflows if tests/ change.

Because these ports run tests as part of CI, and need to be run if any of
the tests change, to check those changes.

Signed-off-by: Damien George <damien@micropython.org>

Author: dpgeorge

.github/workflows/ports_webassembly.yml

@@ -11,6 +11,7 @@ on:
       - 'shared/**'
       - 'lib/**'
       - 'ports/webassembly/**'
+      - 'tests/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}

.github/workflows/ports_zephyr.yml

@@ -11,6 +11,7 @@ on:
       - 'shared/**'
       - 'lib/**'
       - 'ports/zephyr/**'
+      - 'tests/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}