Revert "chore: Drop support for Python 3.7 (MeltanoLabs#166)"

This reverts commit c4e4376.

Author: cameronSMN

Diff for: .github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
     steps:
     - uses: actions/checkout@v4