[BUG] 22.08 ClassLoader-related issues

[gerashegalov]

• [BUG] discrepancy in the plugin jar deployment in run_pyspark_from_build.sh depending on TEST_PARALLEL #5714
• [BUG] No automated tests for REPLs (pyspark, spark-shell, notebooks) #5704
• [BUG] Create a nightly CI test pipeline for force.caller.classloader=false #5703
• [BUG] Documented deployment of spark-avro is not tested #5657
• [BUG] compile-time references to classes potentially unavailable at run time #5648
• 22.06 will workaround [BUG] NoClassDefFoundError for spark-avro when the Plugin is deployed via extraClassPath/driver-class-path #5758 via Disable Avro support when spark-avro classes not loadable by Shim classloader [databricks] #5716
• [BUG] RapidsShuffleManager and external packages for Spark Standalone #5796