Merge pull request open-mmlab#2385 from open-mmlab/dev-1.x

Merge MMSegmentation 1.x development branch dev-1.x to main branch 1.x for v1.0.0rc2

Merge pull request open-mmlab#2257 from xiexinch/bumpv0.29.1

bumpv0.29.1

Merge pull request open-mmlab#2252 from MeowZheng/v1.0.0rc1

Bump V1.0.0rc1

Bump v0.29.0 (open-mmlab#2167)

* bump v0.29.0

* remove 2159

Bump v0.28.0 (open-mmlab#2047)

* bump v0.28.0

* update

Add changelog for MMSeg 1.0.0rc0 (open-mmlab#2007)

* Bump 1.0.0rc0

* rephase

* rephase

Bump v0.27.0 (open-mmlab#1836)

* Bump v0.26.1

* update version

* fix mmcv requirement

Bump v0.26.0 (open-mmlab#1731)

Bump v0.25.0 (open-mmlab#1636)

* Bump v0.25.0

* format

* fix mmcv version

* Update docs/en/changelog.md

Co-authored-by: MengzhangLI <[email protected]>

* Update docs/en/changelog.md

Co-authored-by: MengzhangLI <[email protected]>

* Update docs/en/changelog.md

Co-authored-by: MengzhangLI <[email protected]>

* Update docs/en/changelog.md

Co-authored-by: MengzhangLI <[email protected]>

* Update docs/en/changelog.md

Co-authored-by: MengzhangLI <[email protected]>

Co-authored-by: MengzhangLI <[email protected]>

Bump version to v0.24.1 (open-mmlab#1541)

* Bump version to v0.24.1

* version.py

* changelog.md