Pin asv to latest to fix conda install breakage

.github/workflows/asv_check.yml

@@ -26,19 +26,7 @@ jobs:
           python-version: '3.9'
 
       - name: Install asv
-        run: pip install asv==0.4.2
-
-      # asv 0.4.2 (and more recent versions as well) creates conda envs
-      # using the --force option, which was removed in conda 24.3.
-      # Since ubuntu-latest now comes with conda 24.3 pre-installed,
-      # using the system's conda will result in error.
-      # To prevent that, we install an older version.
-      # TODO: remove this when we eventually upgrade our asv version.
-      # https://github.com/airspeed-velocity/asv/issues/1396
-      - name: Install Conda
-        uses: conda-incubator/setup-miniconda@v3
-        with:
-          conda-version: 24.1.2
+        run: pip install asv==0.6.4
 
       - name: Run asv benchmarks
         run: |