Squashed 'src/secp256k1/' changes from 4187a46649..6264c3d093

6264c3d093 docs: update README
f825d34260 ci: enable silentpayments module
b821a467e2 tests: add constant time tests
b5b73bcd99 tests: add BIP-352 test vectors
eabeedb752 silentpayments: add benchmarks for scanning
1de8b7e854 silentpayments: add examples/silentpayments.c
ed3a44b10a silentpayments: receiving
3c9362dd6a silentpayments: recipient label support
70e20b7145 silentpayments: sending
cf44324b5e build: add skeleton for new silentpayments (BIP352) module
ad60ef7ea7 Merge bitcoin-core/secp256k1#1689: ci: Convert `arm64` Cirrus tasks to GHA jobs
c498779096 Merge bitcoin-core/secp256k1#1687: cmake: support the use of launchers in ctest -S scripts
0dfe387dbe cmake: support the use of launchers in ctest -S scripts
89096c234d Merge bitcoin-core/secp256k1#1692: cmake: configure libsecp256k1.pc during install
7106dce6fd cmake: configure libsecp256k1.pc during install
29e73f4ba5 Merge bitcoin-core/secp256k1#1685: cmake: Emulate Libtool's behavior on FreeBSD
746e36b141 Merge bitcoin-core/secp256k1#1678: cmake: add a helper for linking into static libs
a28c2ffa5c Merge bitcoin-core/secp256k1#1683: README: add link to musig example
2a9d374735 Merge bitcoin-core/secp256k1#1690: ci: Bump GCC snapshot major version to 16
add146e101 ci: Bump GCC snapshot major version to 16
004f57fcd8 ci: Move Valgrind build for `arm64` from Cirrus to GHA
5fafdfc30f ci: Move `gcc-snapshot` build for `arm64` from Cirrus to GHA
e814b79a8b ci: Switch `arm64_debian` from QEMU to native `arm64` Docker image
bcf77346b9 ci: Add `arm64` architecture to `docker_cache` job
b77aae9226 ci: Rename Docker image tag to reflect architecture
145ae3e28d cmake: add a helper for linking into static libs
819210974b README: add link to musig example, generalize module enabling hint
95db29b144 Merge bitcoin-core/secp256k1#1679: cmake: Use `PUBLIC_HEADER` target property in installation logic
37dd422b5c cmake: Emulate Libtool's behavior on FreeBSD
f24b838bed Merge bitcoin-core/secp256k1#1680: doc: Promote "Building with CMake" to standard procedure
3f31ac43e0 doc: Promote "Building with CMake" to standard procedure
6f67151ee2 cmake: Use `PUBLIC_HEADER` target property
c32715b2a0 cmake, move-only: Move module option processing to `src/CMakeLists.txt`
201b2b8f06 Merge bitcoin-core/secp256k1#1675: cmake: Bump minimum required CMake version to 3.22
3af71987a8 cmake: Bump minimum required CMake version to 3.22
92394476e9 Merge bitcoin-core/secp256k1#1673: Assert field magnitude at control-flow join
3a4f448cb4 Assert field magnitude at control-flow join
9fab425256 Merge bitcoin-core/secp256k1#1668: bench_ecmult: add benchmark for ecmult_const_xonly
05445377f4 bench_ecmult: add benchmark for ecmult_const_xonly
bb597b3d39 Merge bitcoin-core/secp256k1#1670: tests: update wycheproof files
d73ed99479 tests: update wycheproof files

git-subtree-dir: src/secp256k1
git-subtree-split: 6264c3d0939f2ab11ba8c92f3cb521f9c89c8596

Author: josibake