ci(workflows): update branch names in triggers

Author: George Khoury

.github/workflows/ci.yml

@@ -3,10 +3,10 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   build:
@@ -16,22 +16,22 @@ jobs:
         python-version: ['3.8', '3.9', '3.10']
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python-version }}
-    - uses: actions/cache@v4
-      with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-python-${{ matrix.python-version }}-pip-${{ hashFiles('.github/workflows/ci.yml') }}
-        restore-keys: ${{ runner.os }}-python-${{ matrix.python-version }}-pip
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install tox tox-gh-actions
-    - name: Lint
-      if: matrix.python-version == '3.10'
-      run: tox -e flake8
-    - name: Tests
-      run: tox
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: actions/cache@v4
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-python-${{ matrix.python-version }}-pip-${{ hashFiles('.github/workflows/ci.yml') }}
+          restore-keys: ${{ runner.os }}-python-${{ matrix.python-version }}-pip
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install tox tox-gh-actions
+      - name: Lint
+        if: matrix.python-version == '3.10'
+        run: tox -e flake8
+      - name: Tests
+        run: tox