Filtering for `--gitrepo` and `--bundle` collects `HelmOp` resources

[sbulage]

System Information

Fleet CLI Version
fleet version v0.15.0-beta.4 (cd90424)

Verification

• Same environment is used to verify fleet dump command with various available options.

Test Scenario	Test Result	Checks
fleet dump -p dump_all_namespaces/fleet_all_resources.tgz --all-namespaces	Resources collected from all namespaces	bundles, bundledeployments, clustergroups, clusters, gitrepos, helmops and metrics
fleet dump with --gitrepo -n fleet-default	Specified GitRepo collected	HelmOps also got collected
fleet dump with --helmop -n fleet-default	Specified HelmOps collected	Successfully filtered helmops
fleet dump with --bundle -n fleet-default	Specified bundle collected	HelmOps bundle also got collected
BundleDeployements/Bundles retrieval after Filtering Namespace	No resources missed when filtered with namespace	Resources collected
Contents from other namespace	No data is included from other namespace	N/A
Events/Secrets with option --with-secrets	Events/Secrets are collected when filtered with namespaces	If no namespace is provided then it fetches from fleet-local

Major issue found

• Filtering for --gitrepo and --bundle collects HelmOp resources
• See above table for filtering options.

Consider following help command improvements.

• For fleet dump command, No extension for output file.
• Considering output file as .tgz, after extract resources has No yaml extension.

Originally posted by @sbulage in #4419