Merge "Upgrade to pcre2-10.37 (2021-05-26)." am: efc31d64b3 am: 465fb3954c

Original change: https://android-review.googlesource.com/c/platform/external/pcre/+/1729574

Change-Id: I61649d18e8aa970a20ffff30546f489c18c12a2b