Try pybind 2.6.2 for py 3.9.0 issue

.github/workflows/build-aarch64.yml

@@ -13,7 +13,8 @@ jobs:
 
     steps:
     - name: Cancel previous runs on the same branch
-      uses: styfle/[email protected]
+      if: ${{ github.ref != 'refs/heads/master' }}
+      uses: styfle/[email protected]
       with:
         access_token: ${{ github.token }}
 
@@ -41,7 +42,7 @@ jobs:
         source venv/bin/activate
         python -m pip install --upgrade pip
         pip install wheel
-        pip install cibuildwheel==1.7.2
+        pip install cibuildwheel==1.8.0
 
     - name: Lint source with flake8
       run: |

.github/workflows/build.yml

@@ -13,7 +13,8 @@ jobs:
 
     steps:
     - name: Cancel previous runs on the same branch
-      uses: styfle/[email protected]
+      if: ${{ github.ref != 'refs/heads/master' }}
+      uses: styfle/[email protected]
       with:
         access_token: ${{ github.token }}
 
@@ -25,7 +26,7 @@ jobs:
     - uses: actions/setup-python@v2
       name: Install Python
       with:
-        python-version: '3.7'
+        python-version: '3.8'
 
     - name: Test for secrets access
       id: check_secrets
@@ -40,7 +41,7 @@ jobs:
     - name: Install cibuildwheel
       run: |
         python -m pip install --upgrade pip
-        pip install cibuildwheel==1.7.3
+        pip install cibuildwheel==1.8.0
 
     - name: Lint source with flake8
       run: |

src/CMakeLists.txt

@@ -32,7 +32,7 @@ include(FetchContent)
 FetchContent_Declare(
   pybind11-src
   GIT_REPOSITORY https://github.com/pybind/pybind11.git
-  GIT_TAG        v2.5.0
+  GIT_TAG        v2.6.2
 )
 FetchContent_MakeAvailable(pybind11-src)