e2e: replace gomega.Equal(true/false) with gomega.BeTrue/BeFalse()

The failure message becomes a bit nicer. Found by the new ginkgolinter, for
example:

    test/e2e/windows/memory_limits.go:160:2: ginkgo-linter: wrong boolean assertion; consider using `gomega.Eventually(ctx, func() bool {
     eventList, err := f.ClientSet.CoreV1().Events(f.Namespace.Name).List(ctx, metav1.ListOptions{})
     ...
    }, 3*time.Minute, 10*time.Second).Should(gomega.BeTrue())` instead (ginkgolinter)

test/e2e/windows/memory_limits.go

@@ -168,7 +168,7 @@ func overrideAllocatableMemoryTest(ctx context.Context, f *framework.Framework,
 			}
 		}
 		return false
-	}, 3*time.Minute, 10*time.Second).Should(gomega.Equal(true))
+	}, 3*time.Minute, 10*time.Second).Should(gomega.BeTrue())
 
 }
 

test/e2e_node/hugepages_test.go

@@ -227,7 +227,7 @@ var _ = SIGDescribe("HugePages [Serial] [Feature:HugePages][NodeSpecialFeature:H
 			framework.ExpectNoError(err, "while getting node status")
 			_, isPresent := node.Status.Capacity["hugepages-3Mi"]
 			return isPresent
-		}, 30*time.Second, framework.Poll).Should(gomega.Equal(false))
+		}, 30*time.Second, framework.Poll).Should(gomega.BeFalse())
 	})
 
 	ginkgo.It("should add resources for new huge page sizes on kubelet restart", func(ctx context.Context) {
@@ -247,7 +247,7 @@ var _ = SIGDescribe("HugePages [Serial] [Feature:HugePages][NodeSpecialFeature:H
 			framework.ExpectNoError(err, "while getting node status")
 			_, isPresent := node.Status.Capacity["hugepages-2Mi"]
 			return isPresent
-		}, 30*time.Second, framework.Poll).Should(gomega.Equal(true))
+		}, 30*time.Second, framework.Poll).Should(gomega.BeTrue())
 	})
 
 	ginkgo.When("start the pod", func() {

test/e2e_node/memory_manager_test.go

@@ -627,7 +627,7 @@ var _ = SIGDescribe("Memory Manager [Disruptive] [Serial] [Feature:MemoryManager
 
 					return true
 				}, time.Minute, 5*time.Second).Should(
-					gomega.Equal(true),
+					gomega.BeTrue(),
 					"the pod succeeded to start, when it should fail with the admission error",
 				)
 			})