Update dependency org.jsoup:jsoup to v1.21.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jsoup:jsoup (source)	1.20.1 -> 1.21.1

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Release Notes

jhy/jsoup (org.jsoup:jsoup)

v1.21.1

Changes

• Removed previously deprecated methods. #​2317
• Deprecated the :matchText pseduo-selector due to its side effects on the DOM; use the new ::textnode selector and the Element#selectNodes(String css, Class type) method instead. #​2343
• Deprecated Connection.Response#bufferUp() in lieu of Connection.Response#readFully() which can throw a checked IOException.
• Deprecated internal methods Validate#ensureNotNull (replaced by typed Validate#expectNotNull); protected HTML appenders from Attribute and Node.
• If you happen to be using any of the deprecated methods, please take the opportunity now to migrate away from them, as they will be removed in a future release.

Improvements

• Enhanced the Selector to support direct matching against nodes such as comments and text nodes. For example, you can now find an element that follows a specific comment: ::comment:contains(prices) + p will select p elements immediately after a <!-- prices: --> comment. Supported types include ::node, ::leafnode, ::comment, ::text, ::data, and ::cdata. Node contextual selectors like ::node:contains(text), :matches(regex), and :blank are also supported. Introduced Element#selectNodes(String css) and Element#selectNodes(String css, Class nodeType) for direct node selection. #​2324
• Added TagSet#onNewTag(Consumer<Tag> customizer): register a callback that’s invoked for each new or cloned Tag when it’s inserted into the set. Enables dynamic tweaks of tag options (for example, marking all custom tags as self-closing, or everything in a given namespace as preserving whitespace).
• Made TokenQueue and CharacterReader autocloseable, to ensure that they will release their buffers back to the buffer pool, for later reuse.
• Added Selector#evaluatorOf(String css), as a clearer way to obtain an Evaluator from a CSS query. An alias of QueryParser.parse(String css).
• Custom tags (defined via the TagSet) in a foreign namespace (e.g. SVG) can be configured to parse as data tags.
• Added NodeVisitor#traverse(Node) to simplify node traversal calls (vs. importing NodeTraversor).
• Updated the default user-agent string to improve compatibility. #​2341
• The HTML parser now allows the specific text-data type (Data, RcData) to be customized for known tags. (Previously, that was only supported on custom tags.) #​2326.
• Added Connection#readFully() as a replacement for Connection#bufferUp() with an explicit IOException. Similarly, added Connection#readBody() over Connection#body(). Deprecated Connection#bufferUp(). #​2327
• When serializing HTML, the < and > characters are now escaped in attributes. This helps prevent a class of mutation XSS attacks. #​2337
• Changed Connection to prefer using the JDK's HttpClient over HttpUrlConnection, if available, to enable HTTP/2 support by default. Users can disable via -Djsoup.useHttpClient=false. #​2340

Bug Fixes

• The contents of a script in a svg foreign context should be parsed as script data, not text. #​2320
• Tag#isFormSubmittable() was updating the Tag's options. #​2323
• The HTML pretty-printer would incorrectly trim whitespace when text followed an inline element in a block element. #​2325
• Custom tags with hyphens or other non-letter characters in their names now work correctly as Data or RcData tags. Their closing tags are now tokenized properly. #​2332
• When cloning an Element, the clone would retain the source's cached child Element list (if any), which could lead to incorrect results when modifying the clone's child elements. #​2334

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