Update withKnownIssue comment for some UI test case

Author: Kyle-Ye

Example/OpenSwiftUIUITests/Animation/Animation/AnimationCompletionUITests.swift

@@ -47,7 +47,7 @@ struct AnimationCompletionUITests {
         }
         // When run seperately, precision: 1.0 works fine
         // but in the full suite, it will hit the same issue of #340
-        withKnownIssue("#340", isIntermittent: true) {
+        withKnownIssue("#690", isIntermittent: true) {
             openSwiftUIAssertAnimationSnapshot(
                 of: ContentView()
             )

Example/OpenSwiftUIUITests/Animation/Animation/BezierAnimationUITests.swift

@@ -77,7 +77,7 @@ struct BezierAnimationUITests {
         }
         // When run seperately, precision: 1.0 works fine
         // but in the full suite, it will hit the same issue of #340
-        withKnownIssue("$340", isIntermittent: true) {
+        withKnownIssue("$690", isIntermittent: true) {
             openSwiftUIAssertAnimationSnapshot(
                 of: ContentView(),
             )

Example/OpenSwiftUIUITests/Animation/Animation/RepeatAnimationUITests.swift

@@ -31,7 +31,7 @@ struct RepeatAnimationUITests {
                     }
             }
         }
-        withKnownIssue("#340", isIntermittent: true) {
+        withKnownIssue("#690", isIntermittent: true) {
             openSwiftUIAssertAnimationSnapshot(
                 of: ContentView(autoreverses: autoreverses),
                 testName: #function + "\(autoreverses)"

Example/OpenSwiftUIUITests/Graphic/Color/ColorUITests.swift

@@ -75,7 +75,7 @@ struct ColorUITests {
                     }
             }
         }
-        withKnownIssue("#340", isIntermittent: true) {
+        withKnownIssue("#690", isIntermittent: true) {
             openSwiftUIAssertAnimationSnapshot(of: ContentView())
         }
     }