Use https in license URLs as recommended by ASF

[elharo]

fixes #2048

[gnodet]

LGTM — Clean, mechanical housekeeping change that replaces http:// with https:// in Apache License 2.0 URLs across 180 files. No functional code changes, only license header comments affected. CI is mostly green.

Two minor observations:

1. Issue reference: The PR body says "fixes #2051" (self-referencing). The actual issue is #2048 ("http → https in license"). Updating the body to "fixes #2048" would auto-close the correct issue on merge.

2. Incomplete coverage: ~838 files in the repo still contain http://www.apache.org/licenses/LICENSE-2.0 (including most of maven-resolver-util, many test files, etc.). This PR is valid as-is, but a follow-up would be needed to complete the migration.

3. .git-blame-ignore-revs: Consider adding the merge commit SHA to .git-blame-ignore-revs (which already has a prior bulk-style commit entry) to keep git blame useful on these 180 files.

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Claude Code on behalf of gnodet