Don't try to compare version strings as strings

Author: mdickinson

.github/workflows/test-with-pip.yml

@@ -22,13 +22,13 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies and local packages (not macOS)
       run: python -m pip install .[gui,h5,preferences]
-      if: matrix.os != 'macos-latest' || ${{ matrix.python-version }} >= '3.10'
+      if: matrix.os != 'macos-latest' || (${{ matrix.python-version }} != '3.8' && ${{ matrix.python-version }} != '3.9')
     - name: Install dependencies and local packages (macOS)
       run: python -m pip install .[gui,preferences]
-      # PyTables won't build on Apple Silicon for Python >= 3.10, so exclude
-      # the h5 dep
+      # PyTables won't build on Apple Silicon for Python < 3.10, so exclude
+      # the h5 dependency.
       # xref: enthought/apptools/issues/344
-      if: matrix.os == 'macos-latest' && ${{ matrix.python-version }} < '3.10'
+      if: matrix.os == 'macos-latest' && (${{ matrix.python-version }} == '3.8' || ${{ matrix.python-version }} == '3.9')
     - name: Run tests
       run: |
         mkdir testdir