Update linuxmain

Author: karwa

Tests/SwiftPlotTests/XCTestManifests.swift

@@ -44,6 +44,16 @@ extension BarchartTests {
     ]
 }
 
+extension HeatmapTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__HeatmapTests = [
+        ("testHeatmap_invertedMapping", testHeatmap_invertedMapping),
+        ("testHeatmap", testHeatmap),
+    ]
+}
+
 extension HistogramTests {
     // DO NOT MODIFY: This is autogenerated, use:
     //   `swift test --generate-linuxmain`
@@ -118,6 +128,7 @@ public func __allTests() -> [XCTestCaseEntry] {
         testCase(AGGRendererTests.__allTests__AGGRendererTests),
         testCase(AnnotationTests.__allTests__AnnotationTests),
         testCase(BarchartTests.__allTests__BarchartTests),
+        testCase(HeatmapTests.__allTests__HeatmapTests),
         testCase(HistogramTests.__allTests__HistogramTests),
         testCase(LineChartTests.__allTests__LineChartTests),
         testCase(PerformanceTests.__allTests__PerformanceTests),