[PATCH] tests: 780 - 783, new HSTS tests

[PATCH] tests: 780 - 783, new HSTS tests

test780: verify updated HSTS data in response header

test781: HSTS update expiry, with parent includeSubDomains domain
present

test782: HSTS update expiry, with two includeSubDomains domains present

test783: HSTS update expiry, removing includesubdomains in update

Backported by: Aquila Macedo Costa <aquilamacedo@riseup.net>.

Changes:
- Adjust `tests/data/Makefile.inc` to include new HSTS tests (780 - 783).
- Updates 'Debug' to 'debug' in test data files (`test780`, `test781`,
  `test782`, `test783`) to align with curl conventions in bookworm and
  ensure consistency in feature definitions.
- Additionally, `%LOGDIR` is replaced with log in the test files due to
  its absence in curl bookworm.

Gbp-Pq: Name CVE-2024-9681-1.patch