clarify "unsupported [database] version" error message

When using an incompatible database version (e.g. from an old install of zoxide) this message is displayed frequently. The message should provide helpful information about the underlying problem and possible solution(s).

src/db/mod.rs

@@ -226,7 +226,10 @@ impl Database {
                 deserializer.deserialize(bytes_dirs).context("could not deserialize database")?
             }
             version => {
-                bail!("unsupported version (got {version}, supports {})", Self::VERSION)
+                bail!(
+                    "unsupported database version (got {version}, supports {}), re-create the database",
+                    Self::VERSION
+                )
             }
         };