fix: ignore NotFoundError in the first call of LazyDiscoverer. __search

[narasux]

What type of PR is this?

/kind bug

What this PR does / why we need it:

According to fabianvf's suggestion, I try to catch the exception in the first call and safely ignore it

kubernetes-client/python#1536 (comment)

Which issue(s) this PR fixes:

Fixes kubernetes-client/python#1536

Does this PR introduce a user-facing change?

Ignore NotFoundError in the first call of LazyDiscoverer. __search

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[narasux]

CLA signature registered

[roycaihw]

/assign @fabianvf

[fabianvf]

It may make more sense to just put line 243 into a try... except block, as multiple calls to this method could happen concurrently in which case they could wrestle over the self.__ignore_not_found_error variable

[narasux]

Great suggestion, try-except is safer than use variable.

[narasux]

PR refreshed.

[yliaog]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: schneesu, yliaog

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[narasux]

Hello @yliaog , does this PR still need to be modified? It seems that the lgtm tag is required for robot auto-merge.

[yliaog]

/lgtm