Include both md and yaml ICE ticket templates
* Existing compilers link to the md version
* The YAML version field for the backtrace *doesn't let us paste a full backtrace*
* We will need the YAML version in order to be able to submit reports once we start storing the backtrace to disk
Follow up to #106831. Reaction to #106874, which made me realize that *really* long backtraces are rejected by GitHub Forms. A single backtrace won't hit this, but ICEs sometimes compound.
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