Ignore open-ended ranges in `KotlinMixins.kt` (to help with Kotlin 1.7.20+)

[poutsma]

Kotlin 1.7.20 introduced "Open-ended ranges", see https://youtrack.jetbrains.com/issue/KT-52932.
As a consequence, writing a Kotlin Range now writes not just the start and end properties, but also endExclusive.

To Reproduce

val mapper: ObjectMapper = ObjectMapper().registerModule(KotlinModule.Builder().build())
println(mapper.writeValueAsString(IntRange(1,3)))

will print out {"start":1,"end":3,"endExclusive":4}.

Expected behavior
The above code should print out {"start":1,"end":3}.

Versions
Kotlin: 1.7.20
Jackson-module-kotlin: 2.13.4
Jackson-databind: 2.13.4

Suggested solution
Add @JsonIgnore abstract public fun getEndExclusive(): T to KotlinMixins.kt

[cowtowncoder]

@poutsma @Spikhalskiy Looks like we have two PRs -- #583 and #589 -- solving this. To me #583 looks preferable but wanted to see WDYT. Would be happy to merge either one but preferably while someone else sanity checks the fix (I have no specific concerns but as the general procedure).

[cowtowncoder]

Fixed via #583, will go in 2.14.0-rc3

[cowtowncoder]

I will also backport this in 2.13 (for 2.13.5) -- partly to get CI not to fail against kotlin-core 1.7.

[poutsma]

I can confirm that this is fixed in 2.14.0-rc3. Thanks!

[cowtowncoder]

Thank you for confirming @poutsma !