Resolve installation for PS version > 8.0.1

[anktd]

This PR aims to fix #160

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Changes done -
in blockonomics.php , Changing the ps_versions_compliancy array from
$this->ps_versions_compliancy = [ 'min' => '8.0', 'max' => '8.0.1',];
to
$this->ps_versions_compliancy = [ 'min' => '8.0', 'max' => _PS_VERSION_,];

Note that this is similar to our plugin for PS version 1.7.

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PS Validator Results:
Validator is passing all except compatibility which seems to be related to this array. However, Compatibility tab is unclickable so we can not be sure and report is also not downloading as PS Validator throws 5XX error.

[DarrenWestwood]

The Compatibility Tab error is an issue in the Prestashop Validator. This can be confirmed by generating a new payment gateway module using the Prestashop Module Generator, which will also cause the same issue in the validator. This appears to be a similar issue to one they patched previously.