v0.45.0

• Revert default configuration file location back from buf.mod to buf.yaml. Note that both continue to work.
• Move default workspace configuration file location from buf.work to buf.work.yaml. Note that both continue to work.
• Move buf beta push to buf push. Note that buf beta push continues to work.
• Move most buf beta mod commands to buf mod. Note that all buf beta mod commands continue to work.
• Add --only flag to buf mod update.
• Warn if buf.yaml contains dependencies that are not represented in the buf.lock file.
• Add --version flag to buf config ls-{breaking,lint}-rules.
• Add SYNTAX_SPECIFIED lint rule to BASIC, DEFAULT categories for v1 configuration.
• Add IMPORT_USED lint rule to BASIC, DEFAULT categories for v1 configuration.
• Bring v1 configuration out of beta.
• Add managed mode for objc_class_prefix, csharp_namespace.