Incrementing VERSION to 117.0.5938.87

Change-Id: I08f802e840c13a32dd253aca7e4eb5ddb2bf25a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4863860
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5938_62@{#6}
Cr-Branched-From: 25a7172-refs/branch-heads/5938@{#1146}
Cr-Branched-From: 2b50cb4-refs/heads/main@{#1181205}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=117
 MINOR=0
 BUILD=5938
-PATCH=86
+PATCH=87