Fix bug in --np option of generate-manifest.sh

[Dyanngg]

Needs to replace the correct regex pattern

[antrea-bot]

Thanks for your PR.
Unit tests and code linters are run automatically every time the PR is updated.
E2e, conformance and network policy tests can only be triggered by a member of the vmware-tanzu organization. Regular contributors to the project should join the org.

The following commands are available:

• /test-e2e: to trigger e2e tests.
• /skip-e2e: to skip e2e tests.
• /test-conformance: to trigger conformance tests.
• /skip-conformance: to skip conformance tests.
• /test-whole-conformance: to trigger all conformance tests on linux.
• /skip-whole-conformance: to skip all conformance tests on linux.
• /test-networkpolicy: to trigger networkpolicy tests.
• /skip-networkpolicy: to skip networkpolicy tests.
• /test-windows-conformance: to trigger windows conformance tests.
• /skip-windows-conformance: to skip windows conformance tests.
• /test-windows-networkpolicy: to trigger windows networkpolicy tests.
• /skip-windows-networkpolicy: to skip windows networkpolicy tests.
• /test-hw-offload: to trigger ovs hardware offload test.
• /skip-hw-offload: to skip ovs hardware offload test.
• /test-all: to trigger all tests (except whole conformance).
• /skip-all: to skip all tests (except whole conformance).

[codecov-commenter]

Codecov Report

Merging #1249 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1249      +/-   ##
==========================================
+ Coverage   56.25%   56.26%   +0.01%     
==========================================
  Files         109      109              
  Lines       12037    12037              
==========================================
+ Hits         6771     6773       +2     
+ Misses       4675     4674       -1     
+ Partials      591      590       -1     

Flag	Coverage Δ
#integration-tests	46.05% <ø> (+0.03%)	⬆️
#unit-tests	42.53% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/ovs/openflow/ofctrl_bridge.go	72.24% <0.00%> (+0.66%)	⬆️

[antoninbas]

LGTM

[Dyanngg]

/test-all