Require 5.8 for SPI

FranzBusch · FranzBusch · commit 0a3866daecd7 · 2023-09-23T18:16:32.000+02:00
diff --git a/.spi.yml b/.spi.yml
@@ -2,3 +2,4 @@ version: 1
 builder:
   configs:
     - documentation_targets: [AsyncAlgorithms]
+      swift_version: 5.8
