This reverts commit a604ddc7.

Co-Authored-By: NWadeck Follonier <wadeck.follonier@gmail.com>

* [JENKINS-57515] update jna library to 5.3.1

This solves problems with loading native libraries of jna on AIX
platform when using openJDK or other JDKs that assume .so is the
extension for shared libraries

* Pointer.SIZE -> Native.POINTER_SIZE

* remove unnecessary import

* adjust to changed api

(cherry picked from commit ffa9abf6)

(cherry picked from commit b18b2e68)

[JENKINS-57993] Avoid printing stack traces for some common agent conditions

(cherry picked from commit dcc395b8)

[JENKINS-57477] - Update to WinP 1.28 to fix process termination logic on Windows

(cherry picked from commit 4a168c6c)

[JENKINS-57528] - Load detached plugins which are implicit deps of other plugins at startup even w/o UC (#4000)

* Do not warn repeatedly of the same missing update site dependency.
This happens when locally testing split plugins (despite their presence in WEB-INF/detached-plugins/*.hpi).

(cherry picked from commit 918a0fd2211210a158279b2f19690c86801fe4a1)

* Detached plugins must be kept up to date with security advisories.

(cherry picked from commit e08d28a69897ff94811e02040255a9d266c44d0d)

* Load detached plugins which are implicit dependencies of other plugins at startup, even if the update center was not used.

(cherry picked from commit ad7a36001d30a6174b25e616fc3c215dd24919d1)

* Adjusted expected version after e08d28a69897ff94811e02040255a9d266c44d0d.

(cherry picked from commit 84f939cebd1a0d03633e7b7c01e71ac387fb6463)

* e08d28a69897ff94811e02040255a9d266c44d0d exposed tests which had been incorrectly storing plugins as *.hpi rather than *.jpi.

(cherry picked from commit a0abad7ec474b28d2d388f075bc54f961046b09a)

* Test failure after ad7a36001d30a6174b25e616fc3c215dd24919d1.

(cherry picked from commit 0084e8dbdddf93bb1353516c1fe20d807577631f)

* Another test failure after ad7a36001d30a6174b25e616fc3c215dd24919d1; fewer installDetachedPlugin calls are now required.

(cherry picked from commit b65bb54e9975a7c77103bf7cf4da82295498f308)
(cherry picked from commit 855ea2ee)

This reverts commit 2a11ba6f, reversing
changes made to 3eec7fde.

(cherry picked from commit a9c94129)

[JENKINS-57111] Do not put agent offline for exceptions in onOnline

(cherry picked from commit a2819d8d)

(cherry picked from commit 52ac8f71)

[JENKINS-57244] FilePath (de)serialization via XStream is unsupported but should not be fatal (#4011)

* [JENKINS-57244] FilePath (de)serialization via XStream is unsupported but should not be fatal.

* Factoring out a _getChannelForSerialization with a friendlier message and a redirect.

Run.keepLog-related names were misleading