Might need older Tor for Python 3 as well.

.github/workflows/ci.yml

@@ -163,17 +163,12 @@ jobs:
       - name: Install Tor [Ubuntu]
         if: matrix.os == 'ubuntu-latest'
         run: sudo apt install tor
-
-      - name: Install Tor [macOS, ${{ matrix.python-version }} ]
-        if: ${{ ( matrix.os == 'macos-latest' ) &&  ( matrix.python-version != '2.7' ) }}
-        run: brew install tor
         
       # TODO: See https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3744.
       # We have to use an older version of Tor for running integration
-      # tests on macOS using Python 2.7.  We should stop doing this
-      # when Python 2.7 is dropped.
+      # tests on macOS.
       - name: Install Tor [macOS, ${{ matrix.python-version }} ]
-        if: ${{ ( matrix.os == 'macos-latest' ) &&  ( matrix.python-version == '2.7' ) }}
+        if: ${{ matrix.os == 'macos-latest' }}
         run: |
           brew extract --version 0.4.5.8 tor homebrew/cask
           brew install tor@0.4.5.8