ci: fix 1.7 e2e test project by pinning jasmine typings version

Author: vikerman

tests/legacy-cli/e2e/assets/1.7-project/package.json

@@ -29,7 +29,7 @@
     "@angular/cli": "0.0.0",
     "@angular/compiler-cli": "^5.2.0",
     "@angular/language-service": "^5.2.0",
-    "@types/jasmine": "~2.8.3",
+    "@types/jasmine": "2.8.3",
     "@types/jasminewd2": "~2.0.2",
     "@types/node": "~6.0.60",
     "codelyzer": "^4.0.1",