Upgrade oss-fuzz to 947169dc86572e121c3e138f366a9f39ac6266ae am: f3764d0712 am: 1117028736 am: 235e96b2f8 am: 75c8dcf71c

Original change: https://android-review.googlesource.com/c/platform/external/oss-fuzz/+/1662261

Change-Id: I968ed19a4d61f3a70193f29ed73d211e174339f2