cherry-pick labring#4281. (labring#4286)

fix cloud version (labring#4255)

Signed-off-by: yy <[email protected]>

fix result (labring#4238)

docs: Automated Changelog Update for v4.3.7 (labring#4210)

* 🤖 add release changelog using robot.

Signed-off-by: sealos-release-robot <[email protected]>

* Update CHANGELOG.md

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Signed-off-by: sealos-release-robot <[email protected]>
Co-authored-by: cuisongliu <[email protected]>

refactor(main): unmount override container (labring#4161) (labring#4208)

(cherry picked from commit 4fed20a)

Signed-off-by: cuisongliu <[email protected]>

refactor(main): skip success exec (labring#4162)

🐛 support env for export (labring#4135)

Signed-off-by: cuisongliu <[email protected]>

🐛 set default http sync registry (labring#4120)

Signed-off-by: cuisongliu <[email protected]>

# Conflicts:
#	pkg/filesystem/registry/sync.go

fix: merge cluster.spec.env (labring#4100) (labring#4105)

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

refactor env keys (labring#4066) (labring#4076)

* feat: add SYNC_WORKDIR env key



* refactor: remove SEALOS_SCP_CHECKSUM env key



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Signed-off-by: fengxsong <[email protected]>
Co-authored-by: fengxsong <[email protected]>