srtp 2.6.0

[chenrui333]

Created by brew bump

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Created with brew bump-formula-pr.

release notes

## What's Changed
* cmake: Support configuring as subproject by @yangskyboxlabs in https://github.com/cisco/libsrtp/pull/640
* cmake: Rename TEST_APPS as LIBSRTP_TEST_APPS option by @yangskyboxlabs in https://github.com/cisco/libsrtp/pull/641
* Add a missing typedef for stream list ctx by @Lastique in https://github.com/cisco/libsrtp/pull/643
* Add x86 SIMD optimizations to crypto datatypes by @Lastique in https://github.com/cisco/libsrtp/pull/507
* fix typo by @uniontech-lilinjie in https://github.com/cisco/libsrtp/pull/648
* iv length is constant so set only once by @pabuhler in https://github.com/cisco/libsrtp/pull/649
* Fix library version in Doxygen docs by @Lastique in https://github.com/cisco/libsrtp/pull/654
* remove comma from srtp_profile_t enum value. by @melchi45 in https://github.com/cisco/libsrtp/pull/658
* meson.build: implement mbedtls support by @iameli in https://github.com/cisco/libsrtp/pull/660
* remove travis reference from README.md by @pabuhler in https://github.com/cisco/libsrtp/pull/661
* try to use ubuntu-latest by @pabuhler in https://github.com/cisco/libsrtp/pull/664
* Some srtp_driver fixes by @pabuhler in https://github.com/cisco/libsrtp/pull/662
* Some cipher_driver fixes by @pabuhler in https://github.com/cisco/libsrtp/pull/663
* start using const on internal arguments by @pabuhler in https://github.com/cisco/libsrtp/pull/665
* Cleaning up cmake and enabled more warnings. by @palerikm in https://github.com/cisco/libsrtp/pull/666
* fix line break in stream_list.yml by @pabuhler in https://github.com/cisco/libsrtp/pull/668
* remove use of pointers to 32bit values by @pabuhler in https://github.com/cisco/libsrtp/pull/667
New Contributors

@yangskyboxlabs made their first contribution in cmake: Support configuring as subproject cisco/libsrtp#640
@uniontech-lilinjie made their first contribution in fix typo cisco/libsrtp#648
@melchi45 made their first contribution in remove comma from srtp_profile_t enum value. cisco/libsrtp#658
@iameli made their first contribution in meson.build: implement mbedtls support cisco/libsrtp#660
@palerikm made their first contribution in Cleaning up cmake and enabled more warnings. cisco/libsrtp#666

Full Changelog: cisco/libsrtp@v2.5.0...v2.6.0

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