v0.3.1

What's changed

• release: bump to 0.3.1 (#96) @taras
• release: the draft banner names the actual next version to bump to (#95) @taras
• release: deno task bump ; the warnings name the fix (#94) @taras
• release: surface a forgotten version bump on the Releases page (#93) @taras
• fix(publish): keep manifest fields in the isolated build's deno.json (#92) @taras