feat: Updated the Pragma Caller contract

[akhercha]

Time spent on this PR:

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Resolves #NA

What is the new behavior?

• PragmaCaller now calls get_data with AggregationMode
• Added the SummaryStats contract calls for Pragma computational feeds
• Updated tests with get_data & MockPragmaSummaryStats contract

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This change is 

[obatirou]

The solidity version of the contract should be fixed ex: 0.8.27

[akhercha]

The solidity version of the contract should be fixed ex: 0.8.27

Done ; although there's multiple contract files using:

pragma solidity >=0.7.0 <0.9.0;

[obatirou]

The solidity version of the contract should be fixed ex: 0.8.27

Done ; although there's multiple contract files using:

pragma solidity >=0.7.0 <0.9.0;

Those not using a fixed version are not production contract

[enitrat]

ill come back to this soon, right after #1510

[enitrat]

All green now; anything else to change?

[akhercha]

@enitrat Everything's good - thanks a lot!

[enitrat]

lgtm - @obatirou all good on the sol contracts?

[enitrat]

actually we should probably add some extra tests for new entrypoints

[obatirou]

actually we should probably add some extra tests for new entrypoints

yes missing tests for new entrypoints and it seems the build does not pass again with the same error.

[akhercha]

Adding the tests asap - sry for the delay, pretty busy with other stuff. 🫡

[ClementWalter]

@akhercha are you able to rebase and fix?

[ClementWalter]

need to change the .tool-versions I guess

[akhercha]

Hopefully fixed soon - sorry for the delay

[akhercha]

@enitrat @obatirou should be good!