deps: update flink.version to v1.13.2

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.apache.flink:flink-runtime_2.11 (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-test-utils_2.11 (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-test-utils-junit (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-connector-test-utils (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-streaming-java_2.11 (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-metrics-core (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-connector-base (source)	1.13.1 -> 1.13.2
org.apache.flink:flink-core (source)	1.13.1 -> 1.13.2

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Release Notes

apache/flink

v1.13.2

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