Update xml.serialization.version to v0.90.3

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
io.github.pdvrieze.xmlutil:serialization-android	0.90.2 -> 0.90.3
io.github.pdvrieze.xmlutil:core-android	0.90.2 -> 0.90.3

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Release Notes

pdvrieze/xmlutil (io.github.pdvrieze.xmlutil:serialization-android)

### [`v0.90.3`](https://redirect.github.com/pdvrieze/xmlutil/blob/HEAD/Changelog.md#0903) Changes: - In pedantic mode check that xml/xmlns are not used as names (they are always invalid). Note that namespaces can be specified using `@XmlSerialName` (for tags) and `@XmlNamespaceDeclSpec` (for additional names). - The cache to use can now be configured. By default it uses the threadLocal version, but the thread unsafe default is also available, as is the `FormatCache.Dummy` cache that does no caching. Fixes: - Fix support for multiple namespaces inside a single tag (QNameMap) as reported in [#​249](https://redirect.github.com/pdvrieze/xmlutil/issues/249). - Use threadlocals for caching document structures by default. This should avoid multithreading issues when reusing the format (recommended for speed)

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