feat: Update membership prospectus to 2023-12 version

https: //gitlab.eclipse.org/eclipsefdn/it/websites/eclipse.org/-/issues/428
Change-Id: I3871a2409e9c7b882d083fc0491baf707d636939
diff --git a/documents/membership-prospectus.pdf b/documents/membership-prospectus.pdf
index 6e9ecee..9a6ae82 100644
--- a/documents/membership-prospectus.pdf
+++ b/documents/membership-prospectus.pdf
Binary files differ