ci, windows: Do not exclude wallet_migration.py in command line

Since bitcoin/bitcoin#31248, it is no longer
necessary to use `--exclude wallet_migration.py`, as the test is skipped
due to not using previous releases.

Author: hebasto

.github/workflows/ci.yml

@@ -370,8 +370,8 @@ jobs:
 
       - name: Run functional tests
         env:
-          # TODO: Fix the excluded tests and re-enable them.
-          EXCLUDE: '--exclude wallet_migration.py,wallet_multiwallet.py'
+          # TODO: Fix the excluded test and re-enable it.
+          EXCLUDE: '--exclude wallet_multiwallet.py'
           TEST_RUNNER_EXTRA: ${{ github.event_name != 'pull_request' && '--extended' || '' }}
         run: py -3 test/functional/test_runner.py --jobs $NUMBER_OF_PROCESSORS --ci --quiet --tmpdirprefix="$RUNNER_TEMP" --combinedlogslen=99999999 --timeout-factor=$TEST_RUNNER_TIMEOUT_FACTOR $EXCLUDE $TEST_RUNNER_EXTRA