Revert "removed Python 3.7 from the -cryptographyMain tests because it fails"

This reverts commit 50654a8.

Author: julianz-

.github/workflows/ci.yml

@@ -22,6 +22,7 @@ jobs:
           - {VERSION: "pypy-3.10", TOXENV: "pypy3"}
           - {VERSION: "3.11", TOXENV: "py311-useWheel", OS: "windows-2022" }
           # -cryptographyMain
+          - {VERSION: "3.7", TOXENV: "py37-cryptographyMain"}
           - {VERSION: "3.8", TOXENV: "py38-cryptographyMain"}
           - {VERSION: "3.9", TOXENV: "py39-cryptographyMain"}
           - {VERSION: "3.10", TOXENV: "py310-cryptographyMain"}
@@ -31,7 +32,7 @@ jobs:
           - {VERSION: "pypy-3.9", TOXENV: "pypy3-cryptographyMain"}
           - {VERSION: "pypy-3.10", TOXENV: "pypy3-cryptographyMain"}
           # -cryptographyMinimum
-
+          - {VERSION: "3.7", TOXENV: "py37-cryptographyMinimum"}
           - {VERSION: "3.8", TOXENV: "py38-cryptographyMinimum"}
           - {VERSION: "3.9", TOXENV: "py39-cryptographyMinimum"}
           - {VERSION: "3.10", TOXENV: "py310-cryptographyMinimum"}