Adapt to renamed libcairo-lo.so.2

...following up on d552b4a549 "Enable opening of
downloaded fonts only in ForKit in Online" and
9eaa1325a0 "Only package the external/cairo
library that is named the same as the SONAME"

Change-Id: Ifec89813140dcca5eea13943a12883febb6c5cd1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146934
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

bin/check-elf-dynamic-objects

@@ -118,7 +118,7 @@ local file="$1"
         */_uuid.cpython-*.so)
             allowlist="${allowlist} libuuid.so.1"
         ;;
-        */libcairo.so.2)
+        */libcairo-lo.so.2)
             allowlist="${allowlist} ${x11allowlist} libxcb-shm.so.0 libxcb.so.1 libxcb-render.so.0"
         ;;
         */libcairocanvaslo.so)