try fixing the flakiness of tooltip tests

autofocusing an input seems to not work, causing the tooltip not to show, in some runs of tests on the CI pipeline. It's not reproducible locally, both using cypress open and cypress run.

packages/jui/src/Tooltip/Tooltip.cy.tsx

@@ -23,9 +23,9 @@ describe("TooltipTrigger", () => {
     workaroundHoverIssue();
     cy.get("button").first().realHover();
 
-    cy.get("[role=tooltip]") // waiting for tooltip to appear
+    cy.findByRole("tooltip") // waiting for tooltip to appear
       .realMouseMove(10, 10); // moving mouse out of the trigger and onto the tooltip.
-    cy.get("[role=tooltip]").should("not.exist"); //tooltip should be closed
+    cy.findByRole("tooltip").should("not.exist"); //tooltip should be closed
   });
 
   it("allows user to click links in a tooltip, if any", () => {
@@ -34,9 +34,9 @@ describe("TooltipTrigger", () => {
     workaroundHoverIssue();
     cy.get("button").realHover();
 
-    cy.get("[role=tooltip]") // waiting for tooltip to appear
+    cy.findByRole("tooltip") // waiting for tooltip to appear
       .realMouseMove(10, 10); // moving mouse out of the trigger and onto the tooltip.
-    cy.get("[role=tooltip]"); //tooltip should not be closed
+    cy.findByRole("tooltip"); //tooltip should not be closed
   });
 
   it("doesn't show the tooltip if tooltip is disabled", () => {
@@ -51,18 +51,18 @@ describe("TooltipTrigger", () => {
     cy.mount(<Default />);
     workaroundHoverIssue();
     cy.get("button").first().realHover();
-    cy.get("[role=tooltip]"); // waiting for tooltip to appear
+    cy.findByRole("tooltip"); // waiting for tooltip to appear
     cy.get("button").click();
-    cy.get("[role=tooltip]").should("not.exist"); // tooltip should not be closed
+    cy.findByRole("tooltip").should("not.exist"); // tooltip should not be closed
   });
 
   it("doesn't close the tooltip on click, if the trigger is an input", () => {
     cy.mount(<OnInput />);
     workaroundHoverIssue();
     cy.get("input").first().realHover();
-    cy.get("[role=tooltip]"); // waiting for tooltip to appear
+    cy.findByRole("tooltip"); // waiting for tooltip to appear
     cy.get("input").click();
-    cy.get("[role=tooltip]"); // tooltip should not be closed
+    cy.findByRole("tooltip"); // tooltip should not be closed
   });
 });
 
@@ -78,9 +78,9 @@ describe("PositionedTooltipTrigger", () => {
       </PositionedTooltipTrigger>
     );
     cy.get("input").first().focus();
-    cy.get("[role=tooltip]").should("exist");
+    cy.findByRole("tooltip").should("exist");
     cy.get("input").first().blur();
-    cy.get("[role=tooltip]").should("not.exist");
+    cy.findByRole("tooltip").should("not.exist");
   });
 
   it("closes the tooltip when the tooltip is disabled while being open", () => {
@@ -102,9 +102,15 @@ describe("PositionedTooltipTrigger", () => {
       );
     };
     cy.mount(<Example />);
-    cy.get("[role=tooltip]").should("exist");
+    cy.get("input").then((input) => {
+      // autofocus doesn't seem to work sometimes on CI runs, for some reason.
+      if (!input.is(":focused")) {
+        cy.get("input").focus();
+      }
+    });
+    cy.findByRole("tooltip").should("exist");
     cy.realType("a");
-    cy.get("[role=tooltip]").should("not.exist");
+    cy.findByRole("tooltip").should("not.exist");
   });
 });