feat(tests): add EIP-7823 modexp limit test with huge exponent #8830

Job	Run time
Spellcheck sources with codespell	18s
Validate changelog entries	20s
Lint markdown files with markdownlint	6s
Lint python sources with ruff	18s
Typecheck python sources with mypy	37s
Fill tests, deployed, self-hosted-ghr-xl-x64, 3.11	15m 10s
Fill benchmark test cases, deployed, ubuntu-latest, 3.11	11m 1s
Fill benchmark test cases, deployed, macos-15, 3.12	7m 49s
Build html documentation with mkdocs	3m 17s
Fill tests, deployed, macos-15, 3.12	14m 1s
Fill benchmark test cases, deployed, ubuntu-latest, pypy3.11	13m 29s
Run unit tests, ubuntu-latest, 3.12	4m 26s
Run unit tests, macos-15, pypy3.11	5m 2s
Run unit tests, macos-15, 3.11	5m 21s
	1h 21m 15s

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