MB-65635 Fix pre-push hook

* Don't try to lint cbbackup &co - they've been removed
* Define `columnar` in `Subcommand` to silence lint

Change-Id: I0a893aa3de541920f9889f5c9da93ebc989627ee
Reviewed-on: https://review.couchbase.org/c/couchbase-cli/+/224480
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: Safian Ali <safian.ali@couchbase.com>

Author: matthallcb

.githooks/pre-push

@@ -15,6 +15,5 @@ done
 # run multiple linters over the codebase before allowing allowing a push (these are the same linters that the build bot
 # runs), therefore, this should mean less wasted time spent fixing mistakes picked up when it's least convenient to fix
 # them.
-pylint --errors-only --disable=import-error cbbackup cbbackupwrapper cblogredaction cbrecovery cbrestore \
-    cbrestorewrapper cbtransfer cbworkloadgen couchbase-cli pump*.py
+pylint --errors-only --disable=import-error cblogredaction cbrecovery cbtransfer cbworkloadgen couchbase-cli pump*.py
 pylint --errors-only --disable=import-error,unused-import --disable C,R cbmgr.py cluster_manager.py

cbmgr.py

@@ -747,6 +747,7 @@ def __init__(self, deprecate_username=False, deprecate_password=False, cluster_d
         # Filled by the decorators
         self.rest = None
         self.enterprise = None
+        self.columnar = None
 
         self.parser = CliParser(formatter_class=CLIHelpFormatter, add_help=False, allow_abbrev=False)
         group = self.parser.add_argument_group("Cluster options")