feat: update module github.com/google/go-github/v67 to v68, add support for project_v2 and project_v2_item events

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/google/go-github/v67	v67.0.0 -> v68.0.0

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Release Notes

google/go-github (github.com/google/go-github/v67)

v68.0.0

Compare Source

This release contains the following breaking API changes:

• feat!: Remove Project (classic) support (#​3380)
  BREAKING CHANGE: All support for "Project (classic)" is removed and Project responses are replaced by ProjectV2 (renamed from ProjectsV2).
• fix!: Remove unused Stats field from Commit struct (#​3395)
  BREAKING CHANGE: The unused Stats field is removed from the Commit struct.

...and the following additional changes:

• Bump go-github from v66 to v67 in /scrape (#​3361)
• Map more missing installation permissions (#​3363)
• build(deps): bump github.com/alecthomas/kong from 1.4.0 to 1.5.0 in /tools (#​3365)
• fix: Preserve HTTP Response in URL Errors (#​3369)
• Update OpenAPI (#​3374)
• feat: Add assignment for org role associations (#​3371)
• build(deps): bump codecov/codecov-action from 5.0.7 to 5.1.1 (#​3375)
• build(deps): bump github.com/alecthomas/kong from 1.5.0 to 1.6.0 in /tools (#​3376)
• build(deps): bump golang.org/x/sync from 0.9.0 to 0.10.0 in /tools (#​3377)
• build(deps): bump golang.org/x/net from 0.31.0 to 0.32.0 in /scrape (#​3378)
• chore: Deprecate legacy ID-based team methods (#​3373)
• feat: Support resolution_comment to update alert API (#​3357)
• feat: Add custom_property events (#​3379)
• feat: Deprecate and replace Bool,Int,Int64,String with Ptr using generics (#​3355)
• feat: Add GET for custom org repo role (#​3372)
• chore: Remove commented out test code (#​3381)
• build(deps): bump golang.org/x/crypto from 0.27.0 to 0.31.0 in /example in the go_modules group (#​3383)
• feat: Add enterprise custom properties (#​3382)
• Change header keys to be canonical (#​3389)
• chore: Sort std imports (#​3390)
• feat: Document review request events in Timeline struct (#​3391)
• fix: DownloadReleaseAsset handles renamed repository (#​3392)
• Bump version of go-github to v68.0.0 (#​3397)

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