Fix linter

Author: solmazabbaspour

.github/workflows/restore.yml

@@ -75,24 +75,24 @@ jobs:
 
     - name: Unzip backup and setup symlink
       run: |
-          mkdir $HOME/ghe-backup-data
+          mkdir "$HOME/ghe-backup-data"
           dir_name=$(date +%s)
-          mkdir $HOME/ghe-backup-data/$dir_name
-          tar -xvf ghes-data/3.8-small-docs.tar.gz -C $HOME/ghe-backup-data/$dir_name
+          mkdir "$HOME/ghe-backup-data/$dir_name"
+          tar -xvf ghes-data/3.8-small-docs.tar.gz -C "$HOME/ghe-backup-data/$dir_name"
 
           ln -s $dir_name $HOME/ghe-backup-data/current
 
     - name: set up ssh SSH_KEY
-      run: echo -e "${SSH_KEY}\n" > $HOME/backup
+      run: echo -e "${SSH_KEY}\n" > "$HOME/backup"
 
     - name: set up ssh key permissions
-      run: chmod 0600 $HOME/backup
+      run: chmod 0600 "$HOME/backup"
 
     - name: change version
       run: echo "3.8.0" > $HOME/version
 
     - name: Prepare for restore
-      run: ssh -p122 -i $HOME/backup -o StrictHostKeyChecking=no admin@${{ inputs.hostname }} "ghe-maintenance -s"
+      run: ssh -p122 -i "$HOME/backup" -o StrictHostKeyChecking=no admin@${{ inputs.hostname }} "ghe-maintenance -s"
 
     - name: Restore data to instance
       run: |
@@ -107,7 +107,7 @@ jobs:
         backup-utils ghe-restore ${{ inputs.hostname }}
 
     - name: Reset maintenance mode after restore
-      run: ssh -p122 -i $HOME/backup -o StrictHostKeyChecking=no admin@${{ inputs.hostname }} "ghe-maintenance -u"
+      run: ssh -p122 -i" $HOME/backup" -o StrictHostKeyChecking=no admin@${{ inputs.hostname }} "ghe-maintenance -u"