fix(no-if): use correct syntax for placeholder substitution in message

Author: G-Rath

src/rules/__tests__/no-if.test.ts

@@ -552,22 +552,6 @@ ruleTester.run('if statements', rule, {
     },
   ],
   invalid: [
-    {
-      code: `
-      it('foo', () => {
-        switch (true) {
-          case true: {
-          }
-        }
-      })
-      `,
-      errors: [
-        {
-          data: { condition: 'if' },
-          messageId: 'noConditionalExpect',
-        },
-      ],
-    },
     {
       code: `it('foo', () => {
         if('bar') {}

src/rules/no-if.ts

@@ -43,7 +43,8 @@ export default createRule({
       recommended: false,
     },
     messages: {
-      noConditionalExpect: 'Test should not contain { condition } statements.',
+      noConditionalExpect:
+        'Test should not contain {{ condition }} statements.',
     },
     schema: [],
     type: 'suggestion',