chore(deps): update peaceiris/actions-gh-pages digest to 84c30a8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
peaceiris/actions-gh-pages (changelog)	action	digest	4f9cc66 → 84c30a8

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[github-actions]

Code Metrics Report

	main (9f073c2)	#875 (30ad3e8)	+/-
Coverage	97.5%	97.5%	0.0%
Code to Test Ratio	1:1.1	1:1.1	0.0
Test Execution Time	23s	1s	-22s

Details

  |                     | main (9f073c2) | #875 (30ad3e8) | +/-  |
  |---------------------|----------------|----------------|------|
  | Coverage            |          97.5% |          97.5% | 0.0% |
  |   Files             |              2 |              2 |    0 |
  |   Lines             |             82 |             82 |    0 |
  |   Covered           |             80 |             80 |    0 |
  | Code to Test Ratio  |          1:1.1 |          1:1.1 |  0.0 |
  |   Code              |            257 |            257 |    0 |
  |   Test              |            288 |            288 |    0 |
+ | Test Execution Time |            23s |             1s | -22s |

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Reported by octocov