(MP)Leopard body upgrade

[Tipchik87]

At the moment Leopard is very close to Viper in strength but very far from Retaliation (Retaliation recently got the necessary hp buff) so I've slightly increased Leopard's kinetic armour and hitpoints to be about the same as Scorpion but still inferior to Cobra.

"armourKinetic": 12 ->14
"hitpoints": 107 ->120

[maxsupermanhd]

This pull request has:

• No links to any previous discussion of the change (such as on Discord or the forums)
• No explanation of what games modes + tech modes + play styles / maps it has been tested on
• No comparisons, videos, spreadsheets / charts, or information that will aide contributors & players in assessing the impact of the change on balance and gameplay.
• No discussion and Voting (on Discord)
• No thread on the Warzone 2100 Discord’s #mp-balance-proposals channel to gather more discussion and feedback from the player community were created.

And yet somehow it was silently merged bypassing every single guideline that was put in place to prevent exactly this from happening.

Laughs in doc/MPBalanceChangeProcess.md

P.S. I thought we were already over this thing. Seeing such an internal rot of the guidelines enforcement really makes me reconsider my dedication to 10 minutes a day of writing new Autohoster backend (it's half way there already btw).