Fix tests to use GET to bypass CsrfFilter

Author: mbhave

spring-boot-integration-tests/spring-boot-security-tests/spring-boot-security-test-web-helloworld/src/test/java/sample/HelloWebSecurityApplicationTests.java

@@ -56,13 +56,15 @@ public void setup() {
 
 	@Test
 	public void requiresAuthentication() throws Exception {
+		this.request.setMethod("GET");
 		this.springSecurityFilterChain.doFilter(this.request, this.response, this.chain);
 		assertThat(this.response.getStatus())
 				.isEqualTo(HttpServletResponse.SC_UNAUTHORIZED);
 	}
 
 	@Test
 	public void userAuthenticates() throws Exception {
+		this.request.setMethod("GET");
 		this.request.addHeader("Authorization",
 				"Basic " + new String(Base64.encode("user:password".getBytes("UTF-8"))));