Introduce pyupgrade

Closes #1742 (closed)

Introducing pyupgrade.

Again, I've made one commit per rule.

changed milestone to %Ruff linting/formatting

added P2 label

assigned to @yschneider

changed the description

requested review from @erouchet

added 17 commits

• cf6370fe...5d3624a1 - 5 commits from branch master
• 5d3624a1...74907fed - 2 earlier commits
• 5f702c9a - Introduce UP014
• c19cd2f4 - Introduce UP015
• 4910740f - Introduce UP024
• f6f0a7a1 - Introduce UP027
• 1dc85c77 - Introduce UP030
• b78b2ab8 - Introduce UP031
• 0a0709a5 - Introduce UP032
• e4c654e5 - Comply with UP034
• 9e88bf1f - Comply with UP039
• 5eca0957 - Comply with pyupgrade

Compare with previous version

added 14 commits

• 5eca0957...0d912738 - 2 commits from branch master
• 0d912738...58ad87e7 - 2 earlier commits
• 388aed29 - Introduce UP014
• 9700495f - Introduce UP015
• a4c997de - Introduce UP024
• de6a6490 - Introduce UP027
• 2b9aed5f - Introduce UP030
• a69e18f1 - Introduce UP031
• 666187dc - Introduce UP032
• d918a9fc - Comply with UP034
• 565d8e8d - Comply with UP039
• 59aef75d - Comply with pyupgrade

Compare with previous version

enabled an automatic merge when the pipeline for 59aef75d succeeds

merged