fix(deps): update dependency singer-sdk to ==0.53.*

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
singer-sdk (changelog)	==0.52.* -> ==0.53.*

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Release Notes

meltano/sdk (singer-sdk)

v0.53.2

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🐛 Fixes

• #​3378 Revert "feat(taps): Queue parent contexts and sync child streams only when the queue is full (#​3058)"

v0.53.1

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🐛 Fixes

• #​3374 For log-based streams, write starting bookmark to the state to ensure the sync runs "incrementally"

v0.53.0

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✨ New

• #​3369 In OpenAPI schema normalization, treat all fields as nullable unless they are part of a primary key
• #​3058 Queue parent contexts and sync child streams only when the queue is full
• #​3364 Normalize allOf components in OpenAPI spec schemas
• #​3363 Add flattening_max_key_length configuration option
• #​3359 Log response header names when backing off requests
• #​3348 Automatic normalization of OpenAPI schema features
• #​3329 Add new IDN/IRI JSON Schema types

🐛 Fixes

• #​3368 Migrate from backoff to python-backoff
• #​3367 Remove branches condition from pull request workflow trigger
• #​3340 Track table preparation to prevent data loss on schema changes
• #​3357 Update dependencies and meltano.yml in templates, use SchemaDirectory
• #​3354 Fix class docstrings in tap, target and mapper templates
• #​3352 Update templates

⚙️ Under the Hood

• #​3355 Make the deprecation warning in singer_sdk.sinks.sql more specific

📚 Documentation Improvements

• #​3362 Move SQL tap, target and stream docs to reflect their location in the package
• #​3358 Fix code examples in SQL target guide

📦 Packaging changes

• #​3360 Require Pytest 9+

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