Make NftReward contract upgradeable

[rndquu]

There is the NftReward contract responsible for minting NFTs using a minter's signature. We should make the contract to be upgradeable.

What should be done:

1. Make NftReward contract upgradeable (using openzeppelin's UUPS contracts)
2. Update the deployment script

[ubiquibot]

! action has an uncaught error

[ubiquibot]

! action has an uncaught error

[gpylypchuk]

/start

[rndquu]

/start

You're free to start, not sure why the bot is not responding

[0x4007]

I think it assigns now only on pull request opened. I don't think this was intentional but I'm also okay with this behavior.

[0x4007]

/query @gpylypchuk

[ubiquibot]

! action has an uncaught error

[0x4007]

@gpylypchuk can you set your wallet address so that the bot can assign you, and you can receive rewards?

[gpylypchuk]

/wallet 0x1dddd6dd3e59fbc5c576536c0d5f7adb69c0ad45

[ubiquibot]

+ Successfully registered wallet address

[gpylypchuk]

/start

[ubiquibot]

Warning!	This task was created over 62 days ago. Please confirm that this issue specification is accurate before starting.
Deadline	Thu, Feb 8, 5:36 AM UTC
Registered Wallet	0x1dddd6dd3e59fbc5c576536c0d5f7adb69c0ad45

Tips:

• Use /wallet 0x0000...0000 if you want to update your registered payment wallet address.
• Be sure to open a draft pull request as soon as possible to communicate updates on your progress.
• Be sure to provide timely updates to us when requested, or you will be automatically unassigned from the task.

[gpylypchuk]

/wallet 0x3ac293A770B62F7fECCe918dCC361a594b7f68eA

[ubiquibot]

+ Successfully registered wallet address

[ubiquibot]

+ Evaluating results. Please wait...

[ubiquibot]

[ 6.8 WXDAI ]

@pavlovcik

Contributions Overview

View	Contribution	Count	Reward
Issue	Comment	2	4.4
Review	Comment	2	2.4

Conversation Incentives

Comment	Formatting	Relevance	Reward
I think it assigns now only on pull request opened. I don't thin...	2.5	0.28	2.5
@gpylypchuk can you set your wallet address so that the bot can ...	1.9	0.08	1.9
> Resolves #1043 Paste the entire link to the issue you are try...	1.6	0.09	1.6
Looks like you guys forgot to merge this. ...	0.8	0.01	0.8

[ 203 WXDAI ]

@gpylypchuk

Contributions Overview

View	Contribution	Count	Reward
Issue	Task	1.00	200
Review	Comment	4	3

Conversation Incentives

Comment	Formatting	Relevance	Reward
I run forge build, builded correctly, let me know if is needed s...	1.4	0.55	1.4
> > Resolves #1043 > > Paste the entire link to the issue you...	0.2	0.19	0.2
I just remove the override methods, seems unnecessary now....	0.9	0.19	0.9
Now the remapping seems correctly :)...	0.5	0.09	0.5

[ 16.4 WXDAI ]

@rndquu

Contributions Overview

View	Contribution	Count	Reward
Issue	Specification	1	13.8
Issue	Comment	1	2.6

Conversation Incentives

Comment	Formatting	Relevance	Reward
There is the [NftReward](https://github.com/ubiquity/nft-rewards...	13.8 a: count: 4 score: "4" words: 6 li: count: 2 score: "2" words: 55	1	13.8
> /start You're free to start, not sure why the bot is not re...	2.6	0.22	2.6