Bump open-watcom/setup-watcom from 0 to 1

Bumps [open-watcom/setup-watcom](https://github.com/open-watcom/setup-watcom) from 0 to 1.
- [Changelog](https://github.com/open-watcom/setup-watcom/blob/master/release.py)
- [Commits](https://github.com/open-watcom/setup-watcom/compare/v0...v1)

---
updated-dependencies:
- dependency-name: open-watcom/setup-watcom
  dependency-version: '1'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build-watcom.yml

@@ -21,7 +21,7 @@ jobs:
 #    - name: configure
 #      run: ./configure
     - name: Setup Open Watcom
-      uses: open-watcom/setup-watcom@v0
+      uses: open-watcom/setup-watcom@v1
     - name: set date
       run: |
        $NOW = Get-Date -Format "yyMMddHHmmss"