main: bump minimum Go version to 1.25

Author: tulir

.github/workflows/go.yml

@@ -11,8 +11,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ["1.24", "1.25"]
-    name: Lint ${{ matrix.go-version == '1.25' && '(latest)' || '(old)' }}
+        go-version: ["1.25", "1.26"]
+    name: Lint ${{ matrix.go-version == '1.26' && '(latest)' || '(old)' }}
 
     steps:
       - uses: actions/checkout@v6

go.mod

@@ -1,8 +1,8 @@
 module go.mau.fi/mautrix-slack
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.25.5
+toolchain go1.26.0
 
 tool go.mau.fi/util/cmd/maubuild