fix(generate): remove a newline

[suzuki-shunsuke]

aqua/pkg/controller/generate/output/insert.go

Line 32 in 42caed5

if err := afero.WriteFile(out.fs, cfgFilePath, []byte(file.String()+"\n"), stat.Mode()); err != nil {

A newline is duplicated.

https://github.com/goccy/go-yaml/blob/6cdefc42e112ac71cbe316e1eed264ea62f58e25/ast/ast.go#L570

// String all documents to text
func (f *File) String() string {
	docs := []string{}
	for _, doc := range f.Docs {
		docs = append(docs, doc.String())
	}
	if len(docs) > 0 {
		return strings.Join(docs, "\n") + "\n"
	} else {
		return ""
	}
}

⭕ 1.10.0
⭕ 1.20.0
⭕ 1.25.0
❌ 1.25.2
❌ 1.26.0
❌ 1.30.3

In v1.25.2, goccy/go-yaml was updated from v1.9.6 to v1.9.8.
v1.25.0...v1.25.2#diff-33ef32bf6c23acb95f5902d7097b7a1d5128ca061167ec0716715b0b9eeaa5f6

• fix(deps): update module github.com/goccy/go-yaml to v1.9.7 #1429
• fix(deps): update module github.com/goccy/go-yaml to v1.9.8 #1447

This bug was caused by this change. goccy/go-yaml#329 go-yaml v1.9.8