Modify GitHub workflow trigger to manual dispatch

The workflow trigger for Python application is switched from automatic push/pull requests on master branch to manual workflow dispatch. This change gives more control over when to execute the workflow, reducing unnecessary runs and save computational resources.

.github/workflows/python-app.yml

@@ -1,52 +1,49 @@
 name: Build and Test
 
 on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     if: ${{ github.repository == 'yandex-praktikum/hw05_final' }}
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [ 3.7, 3.8, 3.9 ]
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Git Clone Action
-      uses: actions/checkout@v4
-      with:
-        repository: ${{ secrets.repository }}
-        ssh-key: ${{ secrets.ACCESS_TOKEN }}
-        path: yatube/
-    - name: Lint with flake8 author
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 yatube --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings
-        flake8 yatube --count --exit-zero --max-complexity=10 --max-line-length=79 --statistics --config=setup.cfg
-    - name: Lint with flake8 tests
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 tests --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings
-        flake8 tests --count --exit-zero --max-complexity=10 --max-line-length=79 --statistics
-    - name: Test with pytest
-      env:
-        SECRET_KEY: "5UP3R-53CR3T-K3Y-FR0M-TurboKach"
-        DJANGO_SETTINGS_MODULE: yatube.settings
-        DEBUG: 1
-        ALLOWED_HOSTS: "*"
-      run: |
-        py.test
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8 pytest
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Git Clone Action
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ secrets.repository }}
+          ssh-key: ${{ secrets.ACCESS_TOKEN }}
+          path: yatube/
+      - name: Lint with flake8 author
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 yatube --count --select=E9,F63,F7,F82 --show-source --statistics
+          # exit-zero treats all errors as warnings
+          flake8 yatube --count --exit-zero --max-complexity=10 --max-line-length=79 --statistics --config=setup.cfg
+      - name: Lint with flake8 tests
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 tests --count --select=E9,F63,F7,F82 --show-source --statistics
+          # exit-zero treats all errors as warnings
+          flake8 tests --count --exit-zero --max-complexity=10 --max-line-length=79 --statistics
+      - name: Test with pytest
+        env:
+          SECRET_KEY: "5UP3R-53CR3T-K3Y-FR0M-TurboKach"
+          DJANGO_SETTINGS_MODULE: yatube.settings
+          DEBUG: 1
+          ALLOWED_HOSTS: "*"
+        run: |
+          py.test