chore: Update readme to relect go 1.23 release

fix(cookie): Remove partitioned field

The partitioned field is only available in go 1.23+ and so
should be removed from the library as this version does not
yet require v1.23+.

See golang/go#62490 (comment)

Fixes #277

bump deps and add vendor dir (#269)

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## What type of PR is this? (check all applicable)

- [ ] Refactor
- [ ] Feature
- [ ] Bug Fix
- [ ] Optimization
- [ ] Documentation Update
- [ ] Go Version Update
- [x] Dependency Update

## Description

## Related Tickets & Documents

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- Related Issue #
- Closes #

## Added/updated tests?

- [x] Yes
- [ ] No, and this is why: _please replace this line with details on why
tests
      have not been included_
- [ ] I need help with writing tests

## Run verifications and test

- [x] `make verify` is passing
- [x] `make test` is passing

Fix typo in README example (#223)

Update go.mod: removes gorilla/context (#196)

Don't use t.Run in tests, not supported in earlier Go versions

This package is meant to work on Go versions going back to Go 1.3,
which means tests can't use testing.T.Run which doesn't exists in Go
1.6 and earlier.

Adds support for SameSite cookie attribute (#165)

Add AUTHORS file; update LICENSE (#158)

[docs] Updated sessioncascade project URL. (#94)