Incrementing VERSION to 100.0.4896.57

Change-Id: I7ae42729f5a60edc488d3cbce992bb658db45eb3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3550682
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/4896@{#848}
Cr-Branched-From: 1f63ff4-refs/heads/main@{#972766}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=100
 MINOR=0
 BUILD=4896
-PATCH=56
+PATCH=57