Avoid filing bugs for crashes from broken CPUs

[suhaibmujahid]

This is a follow-up on https://bugzilla.mozilla.org/show_bug.cgi?id=1861789#c9

As discussed with @amccreight and @gabrielesvelto on Slack:

We should exclude crashes where the CPU info is family 6 model 183 stepping 1 since this seems to be causing issues. We should check the microcode version (i.e., cpu_microcode_version); 0x12b and lower are generally affected by the bugs, while 0x12c does not appear to cause crashes, so exclusion is unnecessary.

[suhaibmujahid]

Based on the follow-up with @gabrielesvelto, we will ignore all family 6 model 183 stepping 1 crashes, regardless of the microcode version.

@gabrielesvelto:
It seems that Intel released a new microcode version (0x12f) and the crashes are back. I don't know if it's because they messed something up or because they never actually went away. It could have been that 0x12c didn't fix the bug but wasn't widely distributed. So everything coming from family 6 model 183 stepping 1 counts as junk, regardless of microcode version.