test: Fix testSkipCrumbs_WhenSenderOrTargetIsNil (#4253)

The testSkipCrumbs_WhenSenderOrTargetIsNil failed, because a
connectivity crumb popped up during the test. This is fixed now by
only validating that the crumbs don't contain any touch crumbs.

Tests/SentryTests/Integrations/Breadcrumbs/SentryBreadcrumbTrackerTests.swift

@@ -195,8 +195,10 @@ class SentryBreadcrumbTrackerTests: XCTestCase {
         swizzlingWrapper.execute(action: "methodPressed:", target: nil, sender: self, event: nil)
         swizzlingWrapper.execute(action: "methodPressed:", target: self, sender: nil, event: nil)
 
-        // The tracker adds 1 enabled crumb when being started
-        XCTAssertEqual(1, delegate.addCrumbInvocations.invocations.count)
+        let touchCrumbs = delegate.addCrumbInvocations.invocations.filter { crumb in
+            return crumb.category == "touch"
+        }
+        XCTAssertEqual(0, touchCrumbs.count)
     }
 
     func testTouchBreadcrumbForSessionReplay() throws {