geistlib v0.21.0

Release notes: CHANGELOG.md in the source. Verify with sha256sum -c SHA256SUMS.

• geist-linux-arm64 74c5e39aebe62f6a17ceb7bff6ef4d6baeeb2a78fec7c6433d84fdd090078c77
• geist-linux-x86_64 2b86f73e4c302032a1935402e7bbbde7f45980827d7809e4f6c26d755c5c2201
• libgeist-linux-arm64.tar.gz 090d4b560982b5ed503f90018e896a0ee76dc1c1bf5a03a85b7d314258679c11
• libgeist-linux-x86_64.tar.gz 20c8b68d78f57274b3eb77b76252ff00dd4f07ac52bd1faf62801bb9464e9489
• libgeist-macos-arm64.tar.gz aae5ce07037ace8ac4ba906f06d641a5822a2d7bc3a3c77c8c3ec20b55a06911
• SHA256SUMS