fix: avoid reformatting yaml when there are no patches to apply

[lizardruss]

What issue type does this pull request address? (keep at least one, remove the others)
/kind bugfix

What does this pull request do? Which issues does it resolve? (use resolves #<issue_number> if possible)
Partial resolution of #2634

Please provide a short message that should be published in the DevSpace release notes
Fixed an issue where DevSpace would reformat yaml when 0 patches are applied

What else do we need to know?
This is only a partial fix of #2634. If there are patches, the YAML formatting issue still occurs.

go.mod & go.sum changes were only to resolve issues running go mod tidy locally.

Other things tried:

• detecting and setting the encoder indentation: The same defect occurs if a YAML document with 4 spaces gets passed in, for example:

test:
    example: |2
      Hello World!

would become invalid YAML when re-marshaled:

test:
    example: |4
      Hello World!

Other suggestions:

• rewrite the yaml using the node tree.. but this will likely corrupt the original strings if they use the chomp indicator |6+
• probably best to wait for an official release.. or create a fork like kustomize has done. We may be able to use their fork once the PR is merged.

@89luca89 @FabianKramm

[netlify]

✅ Deploy Preview for devspace-docs canceled.

Built without sensitive environment variables

Name	Link
🔨 Latest commit	2c9db3d
🔍 Latest deploy log	https://app.netlify.com/sites/devspace-docs/deploys/644c1edb56143d00083da8d6