chore(deps): update dependency build_runner to v2.15.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	Pending
build_runner (source)	dev_dependencies	patch	2.15.1 → 2.15.3	2.16.0

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Release Notes

dart-lang/build (build_runner)

v2.15.3

Compare Source

• Simplify deletion of stale outputs: don't try to handle package renames.
• The daemon asset server now rejects various non-local connections.
• Bug fix: in incremental builds, when an input was deleted, its output was
  deleted at the start of the build. Make it consistent with other output
  deletions: wait until the end of the build.
• Bug fix: post process builders with build_to: source can only write to
  output packages.
• Bug fix: post process builders with build_to: cache can only write output
  corresponding to known packages.
• Bug fix: reject incorrect builder config that has duplicate builder keys.
• Bug fix: reject invalid builder factories in build.yaml.
• Bug fix: correctly filter served or --output post process output.
• Bug fix: serve mode only serves the specified package subdirectories.
• Bug fix: serve live reload websocket checks for localhost origin.
• Bug fix: don't follow symlinks when cleaning up output folders.
• Bug fix: catch Windows-specific absolute paths.

v2.15.2

Compare Source

• Allow analyzer 14.x, require 13.3.0.
• Require Dart 3.11.0.

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