Add tolerations for targetless agent. #13986

Job	Run time
towncrier_check	11s
check_if_release_branch	1s
changed_files	11s
build mirrord CLI	0s
check-rust-docs	1m 6s
test_agent	3m 27s
lint	3m 42s
integration_tests	5m 43s
macos_tests	5m 46s
lint_markdown	0s
test_agent_image	5m 38s
test_cli_image	5m 46s
vscode_e2e_on_release_branch	1s
intellij_e2e_on_release_branch	1s
e2e	1s
ci	1s
	31m 35s

Provide feedback