RFR: 8342807: Update links in java.base to use https://

[Eirik Bjørsnøs]

Please review this cleanup PR which updates a total of 12 links to external documentation or references in `java.base` to use https instead of plain text http.

Links in `java.security` and `share/data/tzdata` are excluded from this PR.

This is a documentaton-only cleanup. No tests are added or updated. `noreg-cleanup` added in the JBS. All updated links have been verified to resolve and to show the expected content. 

There are two files here with non-Oracle copyright headers, not quite sure how to update those? (`java_md_aix.h` and `xss-common-qsort.h`).

Changes beyond the obvious  are as follows:

`linux/native/libsimdsort/xss-common-qsort.h`:
The current link uses a non-default port number. Changed to using the default port number. Reported upstream as intel/x86-simd-sort#170

`share/man/keytool.1`:
www.oracle.com redirects this from `/technetwork/java/javase/javasecarootcertsprogram-1876540.html` to `/java/technologies/javase/carootcertsprogram.html`. Using the new URL here. Should this be updated in Oracle-internal sources as well?

`unix/classes/sun/net/PortConfig.java`
The current link no longer resolves. As a replacement, I suggest https://www.ibm.com/support/pages/node/886227 which answers a support question regarding ephemeral ports.

`unix/native/libjava/*`,
 Links redirect from "www.opengroup.org" to "pubs.opengroup.org". Using this new host in the URLs

`unix/native/libjava/ProcessImpl_md.c`
A link to pasc.org now requires authentication. I changed this to be a Wayback link. Alternantives would be to delete this link, or to track down a revised version of the spec the linked Interpretation Request refers to.

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Commit messages:
 - Use Wayback link
 - Update copyright year
 - Update links in java.base to use https://

Changes: https://git.openjdk.org/jdk/pull/21633/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21633&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342807
  Stats: 14 lines in 8 files changed: 0 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/21633.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21633/head:pull/21633

PR: https://git.openjdk.org/jdk/pull/21633