fix(lint): remove redundant make_ prefixes (E331)

Rename make_superblock → superblock, make_inode_buf → inode_buf,
make_image → image, make_key → key in squashfs and streaming-aead.

fuzz/fuzz_gpt.mli

···
+(** Fuzz tests for {!Gpt}. *)
+
 val suite : string * Crowbar.test_case list
 (** Test suite. *)