Document the reasons of upgrade failure (not applicable for Lotus to MG upgrade)

*https://wiki.folio.org/display/REL/Releases+Home*

This issue was reproduced 2 times (on perf-rancher and on vagrant):

13:38:36.596 [vert.x-eventloop-thread-1] ERROR PostgresClient [55120eqId] ERROR: column jep1.jobexecutionid does not exist (42703)
io.vertx.pgclient.PgException: ERROR: column jep1.jobexecutionid does not exist (42703)
at io.vertx.pgclient.impl.codec.ErrorResponse.toException(ErrorResponse.java:31) ~[mod-source-record-manager.jar:?]
at io.vertx.pgclient.impl.codec.QueryCommandBaseCodec.handleErrorResponse(QueryCommandBaseCodec.java:57) ~[mod-source-record-manager.jar:?]
at io.vertx.pgclient.impl.codec.PgDecoder.decodeError(PgDecoder.java:246) ~[mod-source-record-manager.jar:?]
at io.vertx.pgclient.impl.codec.PgDecoder.decodeMessage(PgDecoder.java:132) [mod-source-record-manager.jar:?]
at io.vertx.pgclient.impl.codec.PgDecoder.channelRead(PgDecoder.java:112) [mod-source-record-manager.jar:?]
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) [mod-source-record-manager.jar:?]

Workaround:

curl "http://localhost:8081/_/tenant" -H "X-Okapi-Tenant: fs09000000" -H "X-Okapi-URL: http://localhost:8081" -H "Content-type: application/json" -XPOST -d'
{
"module_to": "mod-source-record-manager-3.4.0-SNAPSHOT",
"module_from": "mod-source-record-manager-2.3.1"
}'