aws: fix for webidentity expiration mismatch with sts response

[nbaws]

Commit Message: aws: fix for webidentity expiration mismatch with sts response Additional Description: sts response contains scientific notation, this patch handles that expiration case Risk Level: Low Testing: Unit Docs Changes: Release Notes: Platform Specific Features: [Optional Runtime guard:] [Optional Fixes #Issue] https://github.com/envoyproxy/envoy/issues/33806 [Optional Fixes commit #PR or SHA] [Optional Deprecated:] [Optional API Considerations:]

[nbaws]

/assign @suniltheta

[repokitteh-read-only[bot]]

nbaws is not allowed to assign users.

:cat:

Caused by: a https://github.com/envoyproxy/envoy/pull/34426#issuecomment-2139068396 was created by @nbaws.

see: more, trace.

[nbaws]

/retest

[nbaws]

thanks for the review @suniltheta