ci(cachegrind): add PAT

[rakita]

No description provided.

[rakita]

Valgrind Results:

==3793== Cachegrind, a cache and branch-prediction profiler
==3793== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==3793== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==3793== Command: target/release/snailtracer
==3793== 
--3793-- warning: L3 cache found, using its data for the LL simulation.
==3793== 
==3793== I   refs:      456,271,923
==3793== I1  misses:          2,953
==3793== LLi misses:          2,635
==3793== I1  miss rate:        0.00%
==3793== LLi miss rate:        0.00%
==3793== 
==3793== D   refs:      229,452,328  (152,511,610 rd   + 76,940,718 wr)
==3793== D1  misses:        349,840  (    210,028 rd   +    139,812 wr)
==3793== LLd misses:        137,006  (      3,753 rd   +    133,253 wr)
==3793== D1  miss rate:         0.2% (        0.1%     +        0.2%  )
==3793== LLd miss rate:         0.1% (        0.0%     +        0.2%  )
==3793== 
==3793== LL refs:           352,793  (    212,981 rd   +    139,812 wr)
==3793== LL misses:         139,641  (      6,388 rd   +    133,253 wr)
==3793== LL miss rate:          0.0% (        0.0%     +        0.2%  )