Update Alex version in ci-images to 3.2.7.3
Due to #22356 (closed), we need to use alex 3.2.7.3 to generate the lexer in Cabal-syntax at least on javascript backend.
Due to #22356 (closed), we need to use alex 3.2.7.3 to generate the lexer in Cabal-syntax at least on javascript backend.
mentioned in commit 5ab81cae
mentioned in merge request !11286 (closed)
mentioned in commit 609016e5
mentioned in commit 865ccf04
closed with commit 142f8740
mentioned in commit 142f8740