www/apache24: Update to 2.4.26

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Summary

www/apache24: Update to 2.4.26

 - Update to security update 2.4.26
 - Add patches for LibreSSL [1]
 - Add mod_brotli support [2]
 - HTTP/2 support no longer tagged as "experimental" but is instead considered fully production ready

[1] https://bz.apache.org/bugzilla/show_bug.cgi?id=61184
[2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218851

devel/brotli: [NEW PORT] Add brotli 0.6.0, needed for Apache 2.4.26
 - Reported by: Markus Kohlmeyer ([e-mail])

[mat]

devel/brotli/Makefile

6

Remove.

7

Should probably be in archivers first.

16

This is the default, remove.

17

This should be DISTVERSIONPREFIX=v in the top block.

23

This should appear earlier. See here

26

Remove.

30–43

Use options helpers.

www/apache24/Makefile

78–79

Why not use the alreadhy existing devel/libbrotli ?
Also, only depend on a port once, it makes no sense to say "I need X. I need X."

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In consultation with @brnrd - we will track this further under D11285.