test: improve test coverage (go-ldap#568)

* feat: add more tests and update the README.md

* update go test command

* update go version test in CI

chore: update `DirSync` and `DirSyncAsync` examples

update `DirSync` and `DirSyncAsync` example codes to use `DialURL` instead of the already deprecated `Dial` function

Remove old pre-module code (go-ldap#542)

* Remove old pre-module code

older versions still accessible via tags

* Update workflows to only use v3 directory

Also, disable fuzzing until configured correctly in upstream repo

chore: Update dependencies (go-ldap#539)

Revert go-ldap#499: Mark public Start function as deprecated (go-ldap…

…#508)

* Revert "chore: add comment to `Start` function to inform about possible instability when called (go-ldap#499)"

This reverts commit f09ee91.

* chore: add warning to `Start` comment to inform about possible race conditions

fix: Replace DER with ASN1 BER encoding when parsing distinguishedNam…

…es (go-ldap#505)

* fix: Replace DER with ASN1 BER encoding when parsing distinguishedNames
* Remove leftover comment

chore: Mirror v3 to root directory (go-ldap#468)

feat: enable DirSync control in search operation (go-ldap#436)

* feat: enable DirSync control in search operation

* fix: fixed ineffectual assignment to err

* fix: fixed should replace loop with error

* fix: not include Cookie in SearchResult struct

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Co-authored-by: shimokubo <shimokubo@osstech.co.jp>

Fix request timeout handling (go-ldap#388)

* Fix request timeout handling
* Ensure 64-bit alignment

Linter cleanup (go-ldap#368)