Cherry pick 7613 update tag client cache on getKeyLocation

[dlambrig]

Cherry pick PR #7613.

getKeyLocation_internal did not update the SSID->Tag cache when receiving results from the proxy's GetKeyServerLocationsRequest interface. This can result in ssidTagMapping not having information to populate the version vector, in turn resulting in the latest commit version used to fetch data from the SS. This caused waitForVersion to be entered, which can delay responses up to BLOCKING_PEEK_TIMEOUT (currently .4) seconds. If a specific workload from a client is being run this can be indefinite.

Tested running mako and verifying read latency fell back to baseline (non vv) levels.

20220719-152356-henrylambright-1d7ef76da4e02f1d

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[fdb-windows-ci]

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• Commit ID: b830c75
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[foundationdb-ci]

Result of foundationdb-pr-macos on macOS BigSur 11.5.2

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