[Central Package Versions] Bumping the AMQP Library Version (#13565)
[Central Package Versions] Bumping the AMQP Library Version (#13565)

The focus of these changes is to bump the central version for the
`Microsoft.Azure.Amqp` library to v2.4.5, which now contains a target
for `netstandard2.0` and makes more efficient use of resources by eagerly
disposing timers rather than waiting for the finalizer.
jackmagic313/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,jackmagic313/azure-sdk-for-net,brjohnstmsft/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,yugangw-msft/azure-sdk-for-net,yugangw-msft/azure-sdk-for-net,jackmagic313/azure-sdk-for-net,yugangw-msft/azure-sdk-for-net,ayeletshpigelman/azure-sdk-for-net,brjohnstmsft/azure-sdk-for-net,markcowl/azure-sdk-for-net,ayeletshpigelman/azure-sdk-for-net,ayeletshpigelman/azure-sdk-for-net,jackmagic313/azure-sdk-for-net,brjohnstmsft/azure-sdk-for-net,ayeletshpigelman/azure-sdk-for-net,brjohnstmsft/azure-sdk-for-net,jackmagic313/azure-sdk-for-net,brjohnstmsft/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net