v2.1.16

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #393
• Notify slack on scheduled test failure by @IgorTatarnikov in #394
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #398
• Pin vtk by @IgorTatarnikov in #397
• Expose check_latest in the atlas constructor by @IgorTatarnikov in #396
• Expose check latest in Scene constructor by @IgorTatarnikov in #400

Full Changelog: v2.1.15...v2.1.16