Update goccy/go-graphviz to v0.2.4

[k1LoW]

SSIA.

[github-actions]

Code Metrics Report

	main (5a0ab2c)	#625 (7ce8d05)	+/-
Coverage	55.9%	54.3%	-1.6%
Code to Test Ratio	1:0.4	1:0.4	-0.1
Test Execution Time	3m26s	3m28s	+2s

Details

  |                     | main (5a0ab2c) | #625 (7ce8d05) |  +/-  |
  |---------------------|----------------|----------------|-------|
- | Coverage            |          55.9% |          54.3% | -1.6% |
  |   Files             |             52 |             52 |     0 |
  |   Lines             |           4761 |           4765 |    +4 |
- |   Covered           |           2664 |           2591 |   -73 |
- | Code to Test Ratio  |          1:0.4 |          1:0.4 |  -0.1 |
  |   Code              |          10330 |          10338 |    +8 |
  |   Test              |           4342 |           4342 |     0 |
- | Test Execution Time |          3m26s |          3m28s |   +2s |

Code coverage of files in pull request scope (15.8% → 17.1%)

Files	Coverage	+/-
output/gviz/gviz.go	17.1%	+1.3%

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Reported by octocov