Update Link to the Member Committer and Contributor Agreement

Created by: ZahraFazli

Hello, The link to the Eclipse Foundation Member Committer and Contributor Agreement needs to be updated to point to the AISBL MCCA and align with the eclipse.org "Become A Member" Page. Below is the link to the updated MCCA https://www.eclipse.org/legal/committer_process/EclipseMemberCommitterAgreement.pdf Thanks, Zahra