v0.15.0

Changelog

• c7172b7: Always print the number of detected problems (@prymitive)
• 9227c26: Bump actions/checkout from 2 to 3 (@dependabot[bot])
• a37871f: Bump promql/regexp severity to bug (@prymitive)
• 3374eac: Raise promql/series severity from Warning to Bug (@prymitive)
• 5bca518: Refactor HTTP based tests (@prymitive)
• 9561783: Refactor file scanning code (@prymitive)
• 6de93c2: Refactor promql/series check (@prymitive)
• 1be963a: Refactor tests (@prymitive)
• dda1f61: Simplify rate check (@prymitive)
• c6c9b5b: Try speeding up testscript tests (@prymitive)
• f1f4cdd: Try to resolve missing series from recording rules (@prymitive)
• c86b0d3: Use Go 1.17.8 (@prymitive)
• 7efd532: Use Go 1.18 (@prymitive)