Update JGit to 66b871b

$ git log --oneline --no-merges ^a1901305b 66b871b
21e902dd7f Shortcut during git fetch for avoiding looping through all local refs
7650832002 FetchCommand: fix fetchSubmodules to work on a Ref to a blob
8040936f8a Silence API warnings introduced by I466dcde6
ad977f1572 Allow the exclusions of refs prefixes from bitmap
0f3a3fde95 Move MemRefDatabase creation in a separate method.
e4529cd39c PackWriterBitmapPreparer: do not include annotated tags in bitmap
611412a055 BatchingProgressMonitor: avoid int overflow when computing percentage
eb3a708676 [pgm] Fetch-CLI: add support for shallow
cd3fc7a299 Speedup GC listing objects referenced from reflogs
b48f5739d7 Re-add servlet-api 4.0 to the target platform
42d78f788c Upgrade maven plugins
f46f30cdc2 Prepare 6.5.0-SNAPSHOT builds
a549ef002f JGit v6.5.0.202301111425-m1
2011fe06d2 FileSnapshotTest: Add more MISSING_FILE coverage

Release-Notes: Update JGit to 66b871b
Change-Id: I24976a029d9c7878fdbab465c57f30296104adf1
diff --git a/modules/jgit b/modules/jgit
index a190130..66b871b 160000
--- a/modules/jgit
+++ b/modules/jgit
@@ -1 +1 @@
-Subproject commit a1901305b26ed5e0116f138bc02837713d2cf5c3
+Subproject commit 66b871b777c1a58337e80dd03db68bb76b145a93