Bump to xamarin/java.interop/main@e31d9c62 (#7266)

Fixes: #7234

Changes: dotnet/java-interop@a5756ca...e31d9c6

  * dotnet/java-interop@e31d9c62: Context: #7285 (comment) (#1029)
  * dotnet/java-interop@d3ea180c: [generator] Add support for `[ObsoletedOSPlatform]` (#1026)
  * dotnet/java-interop@6d1ae4ee: [generator] Remove [Obsolete] style compatibility hacks. (#1025)
  * dotnet/java-interop@440c05ee: [generator] Refactor logic for applying [Obsolete] attributes (#1024)
  * dotnet/java-interop@9b1d3ab7: [Localization] Import translated resx files (#1018)

`generator` can now emit `[ObsoletedOSPlatformAttribute]`.  Requires:

  - Update `Mono.Android.targets` to pass
    `lang-feature=obsoleted-platform-attributes` to `generator` when
    building for .NET 7+

  - Update `acceptable-breakages-vReference-net7.0.txt` to account
    for removing existing `[Obsolete]` attributes in favor of the new
    ones, for .NET 7+ only

Author: jpobst

external/Java.Interop

@@ -176,6 +176,7 @@
       <_FullIntermediateOutputPath>$([System.IO.Path]::GetFullPath('$(IntermediateOutputPath)'))</_FullIntermediateOutputPath>
       <_LangFeatures>--lang-features=nullable-reference-types</_LangFeatures>
       <_LangFeatures Condition="$(AndroidApiLevel) &gt;= 30">$(_LangFeatures),default-interface-methods,nested-interface-types,interface-constants</_LangFeatures>
+      <_LangFeatures Condition=" $([MSBuild]::VersionGreaterThanOrEquals($(TargetFrameworkVersion), '7.0')) ">$(_LangFeatures),obsoleted-platform-attributes</_LangFeatures>
     </PropertyGroup>
     <Exec
         Command="$(ManagedRuntime) $(ManagedRuntimeArgs) $(Generator) $(_GenFlags) $(_ApiLevel) $(_Out) $(_Codegen) $(_Fixup) $(_Enums1) $(_Enums2) $(_Versions) $(_Annotations) $(_Assembly) $(_TypeMap) $(_LangFeatures) $(_Dirs) $(_Api) $(_WithJavadocXml)"