build(docker): bump node from 18-bullseye-slim to 20-bullseye-slim #3252

Job	Run time
Build	19s
Lint Code	32s
Lint Commit Messages	22s
Dependency Review	6s
Lint Dockerfile	8s
Unit Tests (18, macos-latest)	39s
Unit Tests (18, ubuntu-latest)	43s
Unit Tests (18, windows-latest)	30s
Unit Tests (20, macos-latest)	31s
Unit Tests (20, ubuntu-latest)	44s
Unit Tests (20, windows-latest)	30s
Docker Compose Build Tests	28s
Aggregate Coverage Calculations	1s
Save Dependabot PR Number	1s
	5m 34s

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