Merge tag 'v2.3.15' into testing

diff --cc sdk/branches/testing.bnd
index 0bffadd6140ffd6fa6af59ccb0a8825e60931110,0000000000000000000000000000000000000000..19d097d5ad838c411c344252f8161ad54b28eaea
mode 100644,000000..100644
--- 1/sdk/branches/testing.bnd
--- /dev/null
+++ b/sdk/branches/testing.bnd
@@@ -1,4 -1,0 +1,12 @@@
 +major=2
 +minor=1
 +micro=2
 +qualifier=.next
++
++Bundle-Copyright= \
++Copyright 2009-2023 Mathieu Baudier, \
++Copyright 2012-2023 Argeo GmbH
++
++SPDX-License-Identifier= \
++GPL-2.0-or-later \
++OR LicenseRef-argeo2-GPL-2.0-or-later-with-EPL-and-JCR-permissions