test(ubuntu): work around upstream emulator runner issue

ubuntu-latest == 24 means that command line tools have been updated
a bit, enough to have a "latest" symlink in place on the image, but
not enough to be actually current

This fools the emulator runner though, and it doesn't update the command
line tools because it sees "latest" and thinks that's good enough

So just delete the command line tools completely and let emulator runner
reinstall fresh

.github/workflows/build-quick.yml

@@ -32,6 +32,7 @@ jobs:
       - name: Ubuntu setup
         # We get KVM set up on Ubuntu as we run the emulator there (only platform with nested virt)
         # We also install some system software needed for the build on ubuntu
+        # We also clear out the command-line tools, the emulator runner will reinstall, but latest version
         if: contains(matrix.os, 'ubuntu')
         run: |
           echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
@@ -137,7 +138,7 @@ jobs:
           arguments: test rsdroid:lint --daemon
 
       - name: Run tests (Emulator)
-        uses: reactivecircus/android-emulator-runner@v2
+        uses: mikehardy/android-emulator-runner@ubuntu-24
         if: contains(matrix.os, 'ubuntu')
         timeout-minutes: 30
         with: