Bug: can't find workspace name when updating current workspace

[liu-hm19]

What happened?

The kusion workspace update cmd will report an error of invalid workspace configuration: empty workspace name when updating the current workspace.

What did you expect to happen?

kusion workspace update -f dev.yaml can correctly work.

How can we reproduce it (as minimally and precisely as possible)?

Execute kusion workspace update -f workspace.yaml.

Anything else we need to know?

No response

Kusion version

$ kusion version
# paste output here
releaseVersion: 0.11.0
gitInfo:
    latestTag: v0.11.0
    commit: c9ad0c11d90da13e80eacfc3387d3094bce309ac
    treeState: clean
buildInfo:
    goVersion: go1.22.1
    GOOS: linux
    GOARCH: amd64
    numCPU: 4
    compiler: gc
    buildTime: "2024-04-01 12:28:31"

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

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