Added recommended setting validation_query_timeout to dbconfig.xml

[mmolinac]

Requirements

• Filling out the template is required. Any pull request that does not include enough information to be reviewed in a timely manner may be closed at the maintainers' discretion.
• All new code requires tests to ensure against regressions
• Remember to set idealista:develop as base branch;

Description of the Change

At JIRA startup, you may receive a message about configuring validation_query_timeout in dbconfig.xml as a recommendation.
I've setup recommended values for MySQL and the same default values for Oracle and MSSQL, although they only recommend a default value for MySQL.

Benefits

Follow Atlassian direction about MySQL configuration.

Possible Drawbacks

None that I know of.

Applicable Issues

Fixes #20

[mmolinac]

Hmm. The Java version problem striked the test suite again, I'm afraid.

[jnogol]

It's freaking annoying. Could you please update the Changelog with this PR's change and https://github.com/idealista/jira_role/blob/master/molecule/default/requirements.yml#L3 to 3.4.2?

Thank you very much for your contributions 👏

[mmolinac]

@jnogol Done!