Bump to 0.3.0-rc-2026-03-15 #705

Job	Run time
Build C tests (windows-11-arm)	1m 22s
Build C tests (windows-latest)	44s
Build C tests (ubuntu-latest)	12s
Build Assemblyscript tests (macos-latest)	22s
Build Assemblyscript tests (windows-11-arm)	21s
Build Assemblyscript tests (windows-latest)	24s
Build Rust tests (ubuntu-latest)	59s
Build Rust tests (macos-latest)	1m 11s
Build C tests (macos-latest)	12s
Build Rust tests (windows-11-arm)	1m 34s
Build Rust tests (windows-latest)	1m 16s
Build Assemblyscript tests (ubuntu-latest)	21s
Run tests (ubuntu-latest, wasmtime)	30s
Run tests (macos-latest, wasmtime)	44s
Run tests (windows-latest, wasmtime)	1m 1s
Run tests (windows-11-arm, wasmtime)	1m 10s
upload_test_binaries	0s
	12m 23s

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