chore: add PR template (#1076) #2374

Job	Run time
Cancel previous runs	5s
Build Clarity REPL Distribution	7m 34s
Audit and format	1m 8s
Build Clarinet Distributions (ubuntu-latest, linux, x86_64-unknown-linux-gnu, x64, glibc)	17m 29s
Build Clarinet Distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	17m 14s
Build Clarinet Distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	17m 21s
Build Clarinet Distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	17m 22s
Get Release Info	4s
Build Stacks Devnet JS Distributions (ubuntu-latest, linux, x86_64-unknown-linux-gnu, x64, glibc)	10m 32s
Build Stacks Devnet JS Distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	17m 4s
Build Stacks Devnet JS Distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	16m 15s
Build Stacks Devnet JS Distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	14m 46s
Build Stacks Devnet JS Distributions (ubuntu-latest, linux, x86_64-unknown-linux-musl, x64, musl)	17m 6s
Create ${{ matrix.name }} Docker Image	1s
Release	1s
	2h 34m 2s

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