Describe the bug
The Parse X.509 certificate shows wrong values for r and s in an ECDSA signature

To Reproduce
Steps to reproduce the behaviour or a link to the recipe / input used to cause the bug:

• Version: 9.55.0
• Compile time: 09/12/2022 11:42:13 UTC
• User-Agent:
  Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0
• Link to reproduce

Expected behaviour
The example certificate above was signed using curve P-521. Therefore, both r and s should be 521 bits (66 bytes). But r is only 2 bytes, and s is 29 bytes; both very strange lengths. The certificate itself is correct. If I parse it using 'Parse ASN.1 hex string', the signature is a SEQUENCE of two INTEGERS of 66 bytes each, as expected.

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Additional context
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