[jdk13u-dev] RFR: 8278998: Bump update version for OpenJDK: jdk-13.0.11

[Yuri Nesterenko]

Switch to 11-th release in 13-th release train. JBS number is in place.

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Commit messages:
 - 8278998: Bump update version for OpenJDK: jdk-13.0.11

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/308/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=308&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278998
  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/308.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/308/head:pull/308

PR: https://git.openjdk.java.net/jdk13u-dev/pull/308