Fix typos in code comments: doesnt, dont, wont (#36890)
Fix missing apostrophes in contractions across multiple source files.
Changes:
- `doesnt` -> `doesn't` in `routers/api/v1/repo/git_ref.go` (2
occurrences)
- `dont` -> `don't` in `models/activities/notification_list.go`,
`modules/indexer/code/bleve/token/path/path.go`,
`routers/api/v1/repo/release.go`,
`services/migrations/gitea_downloader.go`,
`services/repository/contributors_graph.go`
- `wont` -> `won't` in `routers/api/v1/repo/issue_subscription.go`,
`models/issues/label_test.go`
Ref: #35015 (good first issues - improve English)
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Co-authored-by: majianhan <majianhan@kylinos.cn>
Co-authored-by: silverwind <me@silverwind.io>