feat(sql): add QuestDB to string returned by version() function

[davidcooke2]

Add QuestDB to the end of the version string so it can be differentiated from postgres when using SHOW VERSION()

[CLAassistant]

All committers have signed the CLA.

[bziobrowski]

Please fix failing tests.

[bziobrowski]

@davidcooke2
To fix the failing testDotNetHex() you've to:

• enable traffic dumping via PGConnectionContext.dumpNetworkTraffic [just set it to true]
• run the test and see the last logged hex dump of network traffic
• replace it in test's script variable (it's almost the same as one of the lines)
• disable traffic dumping & run test again

You can observe what's going on in the test with a network sniffer that can analyze PG protocol like Wireshark .

[ideoma]

What's the motivation for the change? @puzpuzpuz can you comment on why it's needed?
The change itself looks good, happy to approve when the merge conflict is solved.

[puzpuzpuz]

What's the motivation for the change? @puzpuzpuz can you comment on why it's needed?

AFAIR some 3rd-party tools need to be able to differentiate QDB from vanilla Postgres. This PR comes from Flyway maintainers. See flyway/flyway#3656 for the Flyway counterpart PR.

[bluestreak01]

if we manage to resolve conflicts, the PR could make it in todays release