Update GitHub Actions (checkout and setup-go) to v6 to use Node 24 and bump go version to 1.26.

.github/workflows/go_build.yaml

@@ -23,14 +23,14 @@ jobs:
         os: [ubuntu-latest, macOS-latest, windows-latest]
     steps:
 
-    - name: Set up Go 1.22
-      uses: actions/setup-go@v5
+    - name: Set up Go
+      uses: actions/setup-go@v6
       with:
-        go-version: 1.22
+        go-version: 1.26
       id: go
 
     - name: Check out code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Get dependencies
       run: |
@@ -50,14 +50,14 @@ jobs:
         os: [ubuntu-latest]
     steps:
 
-    - name: Set up Go 1.22
-      uses: actions/setup-go@v5
+    - name: Set up Go
+      uses: actions/setup-go@v6
       with:
-        go-version: 1.22
+        go-version: 1.26
       id: go
 
     - name: Check out code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Get dependencies
       run: |

interpreter/operator_arithmetic.go

@@ -704,7 +704,9 @@ func evalRound(_ model.INaryExpression, operands []result.Value) (result.Value,
 	// the future). For now if the value is negative we round towards zero.
 	ratioedDecimal := d * ratio
 	_, frac := math.Modf(ratioedDecimal)
-	if frac == -0.5 {
+	// Use a small epsilon (1e-12) to detect halfway values, handling float precision errors from
+	// multiplication.
+	if math.Abs(frac+0.5) < 1e-12 {
 		// force go to round towards zero
 		ratioedDecimal += 0.1
 	}