v0.15.3

Added

• actonc --cache CACHEDIR can be used to specify the build cache directory

Fixed

• static compilation with Musl libc is now possible on Linux [#1372]
  • adjusted to adjtimex
• hashing for int now supports values outside of i64 [#1348] [#1367]
• fix __pow__ to avoid compiler optimization bug [#1371]
• bump Zig version [#1374]
  • avoids "File not Found" error
• text color in SVG in docs now follow font color [#1365]
• fix hooking of thread creation to inject signal handler wrapper for stop the
  world [#812]
• corrected arguments passed to on_error callback of net.DNS related lookup
  functions [#812]
  • .act file specified 2 arguments to the on_error callback while the .ext.c
    file only sent a single argument

Testing / CI

• cross-compilation is now tested in CI in all jobs for these targets:
  • aarch64-macos-none
  • x86_64-macos-none
  • x86_64-linux-gnu.2.27
  • x86_64-linux-musl
• CI uses --cache to place build cache in ~/.cache/acton/test-build-cache,
  which is in turn cached in CI
  • the cross-compilation testing meant testing went from ~1 minute to ~3, with
    caching it remains at around ~1 minute