Update GitHub handle in footer spec

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: RHSplinter

src/app/component/footer/footer.component.spec.ts

@@ -27,7 +27,7 @@ describe(FooterComponent.name, () => {
     expect(divider).toBeTruthy();
   });
 
-  it("should display a link with a Github icon", () => {
+  it("should display a link with a GitHub icon", () => {
     const githubIcon = fixture.nativeElement.querySelector("[data-testid='github-icon']");
     expect(githubIcon.href).toEqual("https://github.com/RHSplinter/DevToolBox");
     expect(githubIcon.querySelector("i").classList).toContain("fa-github");