Release v0.13.0 - Scheduled sync support

Changelog

Adds support for scheduled sync jobs. Creating a sync like

clace sync schedule --minutes 5 --approve --promote github.com/claceio/clace/examples/utils.star

will automatically apply the latest app config from git every five minutes.

• 0edfd07: Add support for proxy response header updates (@akclace)
• feea6b6: Added config read in params loader (@akclace)
• b6622d4: Added scheduled sync implementation (@akclace)
• 844c7d3: Fix scheduled sync implementation (@akclace)
• da68b1a: Auto error check for http plugin (@akclace)
• 6a8a2ca: Enable write API access by default for staging and preview apps (@akclace)
• a2dfd1c: Fix dict param parsing (@akclace)
• 01bc98a: Fix failure count check (@akclace)
• 929a6f2: Fix test case (@akclace)
• e192148: Remove header delete support (@akclace)