fix: Add support for OpenZeppelin UUPSUpgradeable reinitializer function

[sumitvekariya]

Description

This PR fixes issue #836, where Aderyn was generating false positives for the "Unprotected Initializer" detector when analyzing contracts that use OpenZeppelin's UUPSUpgradeable reinitializer(n) modifier.

The detector is now enhanced to recognize both initializer and reinitializer modifiers as adequate protection for initialization functions, thus reducing false positives.

Changes

• Modified the UnprotectedInitializerDetector to check for modifiers whose names start with "reinitializer", in addition to the existing check for the "initializer" modifier.
• Added a test contract (ReinitializerTest.sol) with both protected and unprotected initializer functions to validate the changes.
• Added a test case to ensure the fix works correctly.

Testing

The changes have been tested with:

• A new test case specifically for the reinitializer modifier
• The existing test case for the initializer modifier
• The full test suite to ensure no regressions

Related Issue

Fixes: #836

[TilakMaddy]

LGTM