fix(deps): update dependency com.uber.nullaway:nullaway to v0.12.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.uber.nullaway:nullaway	0.12.3 -> 0.12.4

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Release Notes

uber/NullAway (com.uber.nullaway:nullaway)

v0.12.4

• Better @MonotonicNonNull support (#​1149)
• Add support for local variables for arrays. (#​1146)
• Ignore Spring Framework 6.2 @MockitoBean, @MockitoSpyBean fields (#​1147)
• JSpecify: preserve explicit nullability annotations on type variables when performing substitutions (#​1143)
• Always acknowledge restrictive annotations in JSpecify mode (#​1144)
• Fix printing of array types in JSpecify errors (#​1145)
• Remove need to use JSpecify's @​Nullable annotation (#​1142)
• Handle calls to generic constructors in JSpecify mode (#​1141)
• Properly handle conditional expression within parens as RHS of assignment (#​1140)
• Skip checks involving wildcard generic type arguments (#​1137)
• Update to Gradle 8.12.1 (#​1133)

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