build: update version of ssh-key-action

Author: diamante0018

.github/workflows/build.yml

@@ -177,7 +177,7 @@ jobs:
           name: linux-x64-release
 
       - name: Install SSH key
-        uses: shimataro/ssh-key-action@v2.6.1
+        uses: shimataro/ssh-key-action@v2.7.0
         with:
           key: ${{ secrets.ALTERWARE_MASTER_SERVER_SSH_PRIVATE_KEY }}
           known_hosts: 'just-a-placeholder-so-we-dont-get-errors'