support deleted files in kusion deps cmd

[amyXia1994]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

2. What is the scope of this PR (e.g. component or file name):

• pkg/kusionctl/cmd/deps/options.go
• go.mod: In order to update the latest kclvm-go deps API, the kclvm-go version in go.mod is updated to v0.4.3-alpha.1

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

before the PR, the in-existing file paths as --focus option is not allowed in using the kusion deps command to find downstream stacks/projects and the in-existing file paths will cause an "invalid focus path" error.
This PR support deleted files in kusion deps --focus option, and slightly improves the performance of that command.

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

This PR adds some unit tests and benchmarks on the core logic about down stream stacks/projects analyzing.

This PR brings some reduction on memory usage result based on the testdata and brings about 50% time and memory consumption base on a 2000+ stacks Konfig repository.

benchstat result on processing downstream stacks/projects of the testdata:

DownStream-4    5.73ms ±40%    4.52ms ±14%     ~     (p=0.222 n=5+5)

name          old alloc/op   new alloc/op   delta
DownStream-4     241kB ± 0%     196kB ± 0%  -18.81%  (p=0.008 n=5+5)

name          old allocs/op  new allocs/op  delta
DownStream-4     2.04k ± 0%     1.58k ± 0%  -22.44%  (p=0.008 n=5+5)

benchstat result on procession a 2000+ stacks Konfig repository:

name                             old time/op    new time/op    delta
KonfigTotal_siteBuild_simple-4      15.7s ±16%      6.9s ±36%  -56.00%  (p=0.008 n=5+5)                                                                                        
KonfigTotal_siteBuild_complex-4     18.0s ±14%      9.6s ± 9%  -46.79%  (p=0.016 n=5+4)

name                             old alloc/op   new alloc/op   delta
KonfigTotal_siteBuild_simple-4     1.04GB ± 0%    0.33GB ± 0%  -68.13%  (p=0.008 n=5+5)
KonfigTotal_siteBuild_complex-4    1.04GB ± 0%    0.42GB ± 0%  -59.65%  (p=0.008 n=5+5)

name                             old allocs/op  new allocs/op  delta
KonfigTotal_siteBuild_simple-4      7.12M ± 0%     2.78M ± 0%  -60.88%  (p=0.008 n=5+5)
KonfigTotal_siteBuild_complex-4     7.12M ± 0%     3.27M ± 0%  -53.99%  (p=0.008 n=5+5)

6. Release note

support deleted files in ```--focus```option. of the ```kusion deps``` command.

[coveralls]

Coverage increased (+0.5%) to 73.045% when pulling 7b0c24d on dev/xiarui.xr/deps-support-deleted into 6d8d86f on main.

[elliotxx]

lgtm