Merge pull request EESSI#1360 from bedroge/lfoss2025b

{2025.06}[2025b] lfoss 2025b

Author: ocaisa

easystacks/software.eessi.io/2025.06/eessi-2025.06-eb-5.2.0-2025b.yml

@@ -5,3 +5,4 @@ easyconfigs:
         include-easyblocks-from-commit: 64173059ec68ff74f68e08115ededa308b2af19a
   - foss-2025b.eb
   - LLVM-20.1.8-GCCcore-14.3.0.eb
+  - lfoss-2025b.eb