Documentation: Update the MySQL Hive Metastore configuration docs

After updating the MySQL connector/J JDBC driver version in the Hive
image, we're now seeing problems with running newer versions of Metering
with older MySQL server versions (e.g. 5.6, 5.7). When diving into the
MySQL Pod logs, we may see the `"[NOTE] Bad handshake"` message logged,
which may indicate we're attempting to authenticate from the client
using TLS 1.2 or TLS 1.3 during the handshake. This is likely because
earlier MySQL server versions only support TLS 1.1 versions and earlier,
so we need to explicitly document this behavior.

Documentation/configuring-hive-metastore.md

@@ -52,18 +52,37 @@ kubectl -n $METERING_NAMESPACE create secret generic <name of the secret> --from
 
 ### Using MySQL for the Hive Metastore database
 
+Metering supports configuring the internal Hive Metastore to use [MySQL 5.6, 5.7, and 8.0 server versions](https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-versions.html).
+
+The following `MeteringConfig` snippet serves as a minimal setup to configure the Hive Metastore with an existing MySQL instance:
+
 ```yaml
 spec:
   hive:
     spec:
       config:
         db:
           url: "jdbc:mysql://mysql.example.com:3306/hive_metastore"
-          driver: "com.mysql.jdbc.Driver"
+          driver: "com.mysql.cj.jdbc.Driver"
           secretName: "REPLACEME"
 ```
 
-You can pass additional JDBC parameters using the `spec.hive.spec.config.db.url`, for more details see [the MySQL Connector/J documentation](https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-reference-configuration-properties.html).
+You can pass additional JDBC parameters using the `spec.hive.spec.config.db.url`. For more details see [the MySQL Connector/J 8.0 documentation](https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-reference-configuration-properties.html).
+
+**Note**: When configuring Metering to work with older MySQL server versions, like 5.6 or 5.7, you may need to add the [`enabledTLSProtocols` JDBC URL parameter](https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-usagenotes-known-issues-limitations.html) when configuring the internal Hive metastore.
+
+For example, in order to use the TLS v1.2 cipher suite, you can use the following snippet as a reference:
+
+```yaml
+...
+spec:
+  hive:
+    spec:
+      config:
+        db:
+          url: "jdbc:mysql://<hostname>:<port>/<schema>?enabledTLSProtocols=TLSv1.2"
+...
+```
 
 ## Using PostgreSQL for the Hive Metastore database