[Bug]: Getting NPE when calling `attachmentValue()` on `AnnotationAttachmentSymbol`

[Krishnananthalingam Tharmigan]

Description

$Subject

Steps to Reproduce

Seems like we are returning Optional.of(null) when the annotation is not constant :

ballerina-lang/compiler/ballerina-lang/src/main/java/io/ballerina/compiler/api/impl/symbols/BallerinaAnnotationAttachmentSymbol.java

Line 68 in 4ac37ad

 return Optional.of(attachmentValue); 

Affected Version(s)

Ballerina Swan Lake Update 9

OS, DB, other environment details and versions

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Related area

-> Compilation

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