Bug 47910.count query text block

[Blackbaud-JasonBodnar]

Description

Fix #47910 by adding Pattern.DOTALL to StringBasedCosmosQuery.COUNT_QUERY_PATTERN.

According to the JavaDoc:

In dotall mode, the expression . matches any character, including a line terminator. By default this expression does not match line terminators.

All SDK Contribution checklist:

• [ X ] The pull request does not introduce [breaking changes]
• [ X ] CHANGELOG is updated for new features, bug fixes or other significant changes.
• [ X ] I have read the contribution guidelines.

General Guidelines and Best Practices

• [ X ] Title of the pull request is clear and informative.
• [ X ] There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• [ X ] Pull request includes test coverage for the included changes.

[github-actions]

Thank you for your contribution @Blackbaud-JasonBodnar! We will review the pull request and get back to you soon.

[Copilot]

Pull request overview

This PR fixes a bug where count queries defined using Java text blocks in @Query annotations caused a ClassCastException. The root cause was that the COUNT_QUERY_PATTERN regex didn't include the Pattern.DOTALL flag, which prevents the . metacharacter from matching newline characters present in text blocks.

Changes:

• Added Pattern.DOTALL flag to COUNT_QUERY_PATTERN in StringBasedCosmosQuery.java
• Added unit test to verify count queries with text blocks are correctly recognized
• Updated CHANGELOG.md to document the bug fix

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
sdk/spring/azure-spring-data-cosmos/src/main/java/com/azure/spring/data/cosmos/repository/support/StringBasedCosmosQuery.java	Adds Pattern.DOTALL flag to COUNT_QUERY_PATTERN regex to handle newlines in text blocks
sdk/spring/azure-spring-data-cosmos/src/test/java/com/azure/spring/data/cosmos/repository/support/StringBasedCosmosQueryUnitTest.java	Adds unit test verifying count queries with Java text blocks work correctly
sdk/spring/azure-spring-data-cosmos/CHANGELOG.md	Documents the bug fix for issue #47910

[rujche]

Hi, @kushagraThapar , @trande4884 , could you please help to review this PR?

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.