Add issue template #686

Job	Run time
bytecode_build (ubuntu-22.04, 4.14.x)	47s
opam_dune_build (ubuntu-22.04, 4.12.x)	1m 54s
docs	1m 39s
opam_dune_build (macos-14, 4.14.x)	2m 43s
build_compat (4.14.x, true, -ubuntu-x86_64)	3m 38s
build (macos-14, 5.3.x)	3m 31s
build_compat (ocaml-variants.4.14.2+options,ocaml-option-musl,ocaml-option-static,ocaml-option-fl...	2m 2s
build (macos-14, 4.14.x, true, -macos-arm64)	4m 37s
build_compat (4.12.x)	3m 37s
build (macos-13, 4.14.x, true, -macos-x86_64)	8m 26s
build_compat (4.08.x)	3m 41s
build (ubuntu-22.04, 5.3.x)	2m 13s
build (ubuntu-22.04, 4.14.x)	1m 54s
build (ubuntu-22.04, ocaml-variants.4.14.2+options,ocaml-option-32bit, true, -ubuntu-i386)	39s
build (ubuntu-20.04, 4.14.x)	3m 8s
build (windows-2022, ocaml.4.14.2,system-mingw, true, -windows-x86_64)	6m 32s
build (windows-2019, ocaml.4.14.2,system-mingw,arch-x86_32, true, -windows-i386)	6m 36s
build (windows-2022, ocaml.4.14.2,system-msvc)	6m 15s
build (windows-2019, ocaml.4.14.2,system-msvc,arch-x86_32)	6m 17s
rpc_abicheck	0s
	1h 10m 9s

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