Fix linting issue: merge variable declaration with assignment (S1021)

[atennak1]

Fixes linting issue in internal/dc/dc.go:237:2 by merging variable declarations with their assignments.

Changes:

• Combined var combinedParameters map[string]string and combinedParameters = make(map[string]string) into combinedParameters := make(map[string]string)
• Combined var combinedTags map[string]string and combinedTags = make(map[string]string) into combinedTags := make(map[string]string)

This resolves the S1021 staticcheck warning about merging variable declaration with assignment on the next line.