Fix invalid GH action and restart file name (NOAA-EMC#2210)

Resolves a typo that leads to an invalid workflow yaml and fixes the restart filename in restart detection.

Resolves NOAA-EMC#2205

Author: aerorahul

.github/workflows/docs.yaml

@@ -57,7 +57,7 @@ jobs:
         if-no-files-found: ignore
 
     - name: Comment ReadDocs Link in PR
-      if: github.event_name == "pull_request"
+      if: github.event_name == 'pull_request'
       uses: actions/github-script@v6
       with:
         script: |

ush/forecast_det.sh

@@ -67,7 +67,7 @@ FV3_det(){
 
       # Check for availability of FV3 restarts
       if [[ -f "${COM_ATMOS_RESTART}/${PDYS}.${cycs}0000.coupler.res" ]]; then
-        mv "${COM_ATMOS_RESTART}/${PDYS}.${cycs}.coupler.res" "${COM_ATMOS_RESTART}/${PDYS}.${cycs}.coupler.res.old"
+        mv "${COM_ATMOS_RESTART}/${PDYS}.${cycs}0000.coupler.res" "${COM_ATMOS_RESTART}/${PDYS}.${cycs}0000.coupler.res.old"
       else
         local fv3_rst_ok="NO"
       fi