Release `v0.3.0`

See #2, release log:

• 8399536 by @iizudev: update publish.yml
• 8574e51 by @iizudev: update .rultor.yml
• cbccd96 by @iizudev: update .rultor.yml
• 4e4d19c by @iizudev: update publish.yml
• 582684d by @iizudev: update and rename build_n_test...
• ef582d1 by @iizudev: create publish.yml
• 1570ae4 by @iizudev: add rultor config
• f202b6d by @iizudev: delete .github/workflows/publi...
• 7b001e5 by @iizudev: remove rust snippet from READM...
• b20769e by @iizudev: update publish.yml
• 4c00cb8 by @iizudev: update build_n_test.yml
• f3d0daa by @iizudev: create build_n_test.yml
• 3720c08 by @iizudev: create publish.yml
• 8f60b7d by @iizudev: update version
• bbe4b76 by @iizudev: fix authors
• 386513c by @iizudev: fix README toml comment
• f2d8efa by @iizudev: polish
• ceb528e by @iizudev: add license
• 747d5f0 by @iizudev: add README
• ab45746 by @iizudev: initial

Released by Rultor 2.0-SNAPSHOT, see build log