RFR: 8256216: Enable reproducible builds in jib-profiles [v3]

[Magnus Ihse Bursie]

> The time has come to actually turn on the support for reproducible builds by default in the jib profiles.

Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:

  Change formatting as requested

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1176/files
  - new: https://git.openjdk.java.net/jdk/pull/1176/files/35809f3d..5b51de95

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1176&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1176&range=01-02

  Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1176.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1176/head:pull/1176

PR: https://git.openjdk.java.net/jdk/pull/1176