fix(NODE-6144): Long.fromString incorrectly coerces valid inputs to Long.ZERO in special cases

[aditi-khare-mongoDB]

Description

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Release Highlight

Long.fromString takes radix into account before coercing '+/-Infinity' and 'NaN' to Long.ZERO

Long.fromString no longer coerces the following cases to Long.ZERO when the provided radix supports all characters in the string:

• '+Infinity', '-Infinity', or 'Infinity' when 35 <= radix <= 36
• 'NaN' when 24 <= radix <= 36

// when writing in radix 27, 'n' and 'a' are valid characters, so 'NaN' represents the decimal number 17060
Long.fromString('NaN', 27); // new Long(17060)
Long.fromString('NaN', 10); // new Long(0) <-- Since 'NaN' is not a valid input in base 10, it gets coerced to Long.ZERO

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