Sensible database change management

Changes for 1.4.1 - 2024-02-04T16:35:32Z

• Removed the quoting of the role and warehouse identifiers that was added to the Snowflake engine in v1.4.0. Turns out Snowflake allows a warehouse to be specified in a different database, in which case dots are valid in the name and should not be quoted! So users must properly quote when necessary, but added notes to `sqitchtutorial-snowflake.pod` on the need to use URI escapes for special characters. Thanks to Patrick Sabo for the find, and to @marc-marketparts for validating that URI encoding works.
• Added notes on URL encoding database URLs to `sqitch-target.pod`, the main reference for database URLs in the Sqitch documentation.
• Fixed the output of the list of changes to be deployed or reverted to actually require `--verbose` twice, as described in the v1.4.0 changes, and not just once. Thanks to Erik Wienhold for the PR (#785)!
• Removed the duplicate change name from the output of the list of changes to be deployed or reverted with `-VV`. Thanks to Erik Wienhold for the PR (#787)!
• Fixed invalid template resolution when adding a singe change to multiple engines at once. Thanks to Christian Riedel for the detailed bug report (#795)!
• Fixed Oracle and Firebird test failures due to incorrect use of `chmod`. Thanks to Slaven Rezić for the report and the fix (#807)!
• Tests now require Test::Warn 0.31 or later, as newline handling issues cause test failures in earlier versions. Thanks to Slaven Rezić for the test reports and for identifying the issue.
• Updated the locale configuration to fix issues in more recent versions of Perl, and added tests to ensure that the sqitch CLI executes and properly emits localized messages (except on Windows, where the language codes are incompatible).
• Fixed an issue where the MySQL engine failed to recognize the MariaDB `mysql` client installed by Homebrew on macOS. Thanks to Carlos Ramos for the bug report and PR (#791)!