.github: update go version and remove debug statements

Author: kkoreilly

.github/workflows/core.yml

@@ -37,17 +37,15 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.23.4'
+          go-version: '1.24.5'
 
       - name: Install Core
         run: go install cogentcore.org/core@main
 
       - name: Build App
         run: |
           go install golang.org/dl/gotip@latest
-          echo "installed"
           gotip download
-          echo "downloaded"
           echo "GOROOT=$HOME/sdk/gotip" >> $GITHUB_ENV
           echo "$HOME/sdk/gotip/bin:$PATH" >> $GITHUB_PATH
           core build web -o static