Fixing indentation in `run_proof_hint` #6588

Job	Run time
Pyk: Code Quality & Unit Tests (3.10)	1m 52s
Java: Linting	1m 22s
Pyk: Code Quality & Unit Tests (3.11)	1m 15s
Pyk: Code Quality & Unit Tests (3.12)	1m 33s
Code Quality Checks	1s
Pyk: Nix Build (ubuntu-latest)	50s
Pyk: Nix Build (macos-14)	1m 31s
K: Source Build & Test	24m 44s
K: Ubuntu Jammy Frontend Package	4m 41s
K: Nix Build & Test (self-hosted, linux, normal)	4m 49s
K: Ubuntu Jammy Package	14m 17s
K: Nix Build & Test (MacM1, self-macos-12)	25m 54s
Pyk: Documentation	4m 42s
Pyk: Regression Tests	17m 40s
Pyk: Integration Tests	17m 53s
Pyk: Profiling	3m 30s
	2h 6m 34s

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