CI: more workaround to ensure we patch the requirements before trying to install them

Author: bsipocz

tox.ini

@@ -40,11 +40,17 @@ deps =
 
 allowlist_externals = bash, sed
 
-commands =
-    pip freeze
 
+install_command =
     # lsdb has tighter minimum dependencies, deal with it here for now, long term handle it from the notebook metadata
-    oldestdeps: bash -c 'echo tutorials/parquet-catalog-demos/irsa-hats-with-lsdb >> ignore_testing'
+    # We need to do this here before the dependencies are installed to work around deps conflicts
+    oldestdeps: bash -c "echo tutorials/parquet-catalog-demos/irsa-hats-with-lsdb >> ignore_testing; sed -i -e 's|lsdb|\#lsdb|g' .binder/requirements.txt && python -I -m pip install $@"
+
+    # Adding back the default install command
+    !oldestdeps: python -I -m pip install {opts} {packages}
+
+commands =
+    pip freeze
 
     # Ignore testing the tutorials listed in ignore_testing file. We have some OS specific ignores,
     # too due to issues with e.g. multiprocessing and problems in upstream dependency