fix failed test snapshots (opensearch-project#22)

fix failed test snapshots

temporary fix: fetch functional test from main branch

fixed git error which cannot find ref due to feature branch `workspace`
not exists on repo opensearch-dashboards-functional-test

Signed-off-by: Yulong Ruan <ruanyl@amazon.com>

---------

Signed-off-by: Yulong Ruan <ruanyl@amazon.com>

Author: ruanyl

.github/workflows/cypress_workflow.yml

@@ -55,7 +55,8 @@ jobs:
         with:
           path: ${{ env.FTR_PATH }}
           repository: opensearch-project/opensearch-dashboards-functional-test
-          ref: '${{ github.base_ref }}'
+          # revert this to '${{ github.base_ref }}'
+          ref: 'main'
 
       - name: Get Cypress version
         id: cypress_version
@@ -88,7 +89,7 @@ jobs:
           name: ftr-cypress-screenshots
           path: ${{ env.FTR_PATH }}/cypress/screenshots
           retention-days: 1
-      
+
       - uses: actions/upload-artifact@v3
         if: always()
         with:
@@ -101,4 +102,4 @@ jobs:
         with:
           name: ftr-cypress-results
           path: ${{ env.FTR_PATH }}/cypress/results
-          retention-days: 1
+          retention-days: 1