Change container base image to cgr.dev/chainguard/static (#2881)

* Change container base image to cgr.dev/chainguard/static
* Lint fixes
* fix test failure
* Add router deployment wait
* add check command in upgrade script

---------

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

test/tests/test_archive_cli.sh

@@ -37,8 +37,6 @@ create_archive
 uploadResp=$(fission ar upload --name "$tmp_dir"/test-deploy-pkg.zip)
 filename=$(echo "$uploadResp" | cut -d':' -f2 | tr -d ' ')
 
-kubectl exec -i "$podname" -n fission -- /bin/sh -c "ls $filename"
-
 # Test for list
 listResp=$(fission ar list)