HOTFIX: add missing upgrade docs
<li> Overloaded <code>JoinWindows#of, before, after</code>, <code>SessionWindows#with</code>, <code>TimeWindows#of, advanceBy</code>, <code>UnlimitedWindows#startOn</code> and <code>KafkaStreams#close</code> with <code>long</code> typed parameters: deprecated in Kafka 2.1.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-358%3A+Migrate+Streams+API+to+Duration+instead+of+long+ms+times">KIP-358</a>).</li>
<li> Overloaded <code>KStream#groupBy, groupByKey</code> and <code>KTable#groupBy</code> with <code>Serialized</code> parameter: deprecated in Kafka 2.1.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-372%3A+Naming+Repartition+Topics+for+Joins+and+Grouping">KIP-372</a>).</li>
<li> <code>Joined#named, name</code>: deprecated in Kafka 2.3.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-307%3A+Allow+to+define+custom+processor+names+with+KStreams+DSL">KIP-307</a>).</li>
+ <li> <code>KafkaClientSupplier#getAdminClient</code>: deprecated in Kafka 2.4.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-476%3A+Add+Java+AdminClient+Interface">KIP-476</a>).</li>
<li> Overloaded <code>KStream#join, leftJoin, outerJoin</code> with <code>KStream</code> and <code>Joined</code> parameters: deprecated in Kafka 2.4.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-479%3A+Add+StreamJoined+config+object+to+Join">KIP-479</a>).</li>
<li> Overloaded <code>KafkaStreams#metadataForKey</code>: deprecated in Kafka 2.5.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-535%3A+Allow+state+stores+to+serve+stale+reads+during+rebalance">KIP-535</a>).</li>
<li> Overloaded <code>KafkaStreams#store</code>: deprecated in Kafka 2.5.0 (<a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-562%3A+Allow+fetching+a+key+from+a+single+partition+rather+than+iterating+over+all+the+stores+on+an+instance">KIP-562</a>).</li>
