remove 3.7

Author: blueswen

.github/workflows/unittests.yml

@@ -5,11 +5,11 @@ jobs:
     name: Run unit tests with codecov upload
     runs-on: ${{ matrix.os }}
     env:
-      USING_COVERAGE: '3.7'
+      USING_COVERAGE: '3.8'
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10"]
     steps:
     - uses: actions/checkout@master
 

.github/workflows/unittests_codecov.yml

@@ -14,11 +14,11 @@ jobs:
     name: Run unit tests with codecov upload
     runs-on: ${{ matrix.os }}
     env:
-      USING_COVERAGE: '3.7'
+      USING_COVERAGE: '3.8'
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10"]
     steps:
     - uses: actions/checkout@master