S3 pillar cache file should be opened 'wb' on python3 #54698
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What does this PR do?
This fixes the S3 pillar on python3. In python3 the file that is written to with pickle.dump needs to be opened in binary write mode. The fix should be backwards compatible to python2 AFAIK.
What issues does this PR fix or reference?
Fixes #54696
Previous Behavior
Previously fetching the pillar data would fail on python3 due to the writing of the cache throwing an exception.
New Behavior
It works.
Tests written?
No. I'd not mind giving a stab at it if someone can point me at test fixtures for EC2.
Commits signed with GPG?
Yes.