CI: use 1.25

Author: aldas

.github/workflows/echo.yml

@@ -25,7 +25,7 @@ jobs:
         # Echo tests with last four major releases (unless there are pressing vulnerabilities)
         # As we depend on `golang.org/x/` libraries which only support last 2 Go releases we could have situations when
         # we derive from last four major releases promise.
-        go: [ "1.24", "1.25" ]
+        go: [ "1.25" ]
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps: