Update build_wheels.yml

Removed 3.7 from python-version matrix.  Official support for Python 3.7 ended 2023-06-27

.github/workflows/build_wheels.yml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         os: [windows-2019]
         arch: [x86, x64]
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
 
     steps:
       - name: Checkout repository
@@ -46,7 +46,7 @@ jobs:
         # There is documentation here https://github.com/pypa/cibuildwheel/blob/main/docs/cpp_standards.md on how to
         # set it but I could not get it to work while using the standard images provided by github actions does work.
         os: [macos-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12"]
     env:
       SYSTEM_VERSION_COMPAT: 0