jwtauthccl: update jwx library to jwx/v2

[sanchit-CRL]

• jwx library was used for technologies such as JWT, JWS, JWE, etc in Go.
• jwx_v2 allows better functions in-house which would reduce the overall code for validation, verification and caching
• The library was upgraded and all the incompatible changes from v1 to v2 were addressed as mentioned in https://github.com/lestrrat-go/jwx/blob/develop/v2/Changes-v2.md

Epic: CRDB-39964 Fixes: CRDB-35990

Release note: none

[cockroach-teamcity]

This change is 

[sanchit-CRL]

bors r+

[craig[bot]]

Build succeeded:

• local_roachtest_fips
• local_roachtest
• linux_arm64_build
• macos_amd64_build
• acceptance
• lint
• docker_image_amd64
• unit_tests
• check_generated_code
• macos_arm64_build
• linux_amd64_build
• linux_amd64_fips_build
• windows_build
• examples_orms