Bump SiliconLabsSoftware/matter_build_action from 1.1.2 to 1.2.0 (#300)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mathieu Kardous <mathieu.kardous@silabs.com>

Author: dependabot[bot]

.github/workflows/silabs-common-build.yaml

@@ -33,7 +33,7 @@ jobs:
                   bootstrap-log-name: bootstrap-logs-${{ inputs.example-app }}-${{ matrix.platform }}
 
             - name: Build ${{ inputs.example-app }} configurations
-              uses: SiliconLabsSoftware/matter-gn-build-action@v1.1.2
+              uses: SiliconLabsSoftware/matter_build_action@v1.2.0
               with:
                   json-file-path: >
                       ${{ matrix.platform == 'mg24' && './.github/silabs-builds-mg24.json' ||