Fix workflow format errors

Author: PythonCoderAS

.github/workflows/backend-format.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Python
-        uses: actions/setup-python
+        uses: actions/setup-python@v2
         with:
           python-version: '3.12'
 

.github/workflows/backend-lint.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Python
-        uses: actions/setup-python
+        uses: actions/setup-python@v2
         with:
           python-version: '3.12'
 

.github/workflows/frontend-format.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Node.js
-        uses: actions/setup-node
+        uses: actions/setup-node@v2
         with:
           node-version: '20'
 

.github/workflows/frontend-lint.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Setup Node.js
-        uses: actions/setup-node
+        uses: actions/setup-node@v2
         with:
           node-version: '20'