ci: Update debian:bookworm-slim Docker digest to d830561

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
debian	final	digest	903d322 -> d830561

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[dfandrich]

Analysis of PR #15315 at c452b3f2:

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-0--2] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-0--1] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-0-0] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-1--2] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-1--1] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-1-0] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test http/test_17_ssl_use.py::TestSSLUse::test_17_09_ssl_min_max[TLSv1-2--2] failed, which has NOT been flaky recently, so there could be a real issue in this PR.

There are more failures, but that's enough from Gha.

Generated by Testclutch