RFR: 8305839: Add application/sql MIME type for SQL file extension

[Izumi Ryuu]

8305839: Add application/sql MIME type for SQL file extension

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Commit messages:
 - 8305839: Add application/sql MIME type for SQL file extension

Changes: https://git.openjdk.org/jdk/pull/16563/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16563&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305839
  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/16563.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16563/head:pull/16563

PR: https://git.openjdk.org/jdk/pull/16563