chore: fix tsconfig.spec.json after upgrade
chore: fix tsconfig.spec.json after upgrade

Error received running tests:
No inputs were found in config file 'tsconfig.json'. Specified 'include' paths were '["**/*.spec.ts"]' and 'exclude' paths were '["../node_modules","../src/**/*.spec.ts","../src/**/__tests__/*.ts"]'.
datencia/ionic2-jest-example,datencia/ionic2-jest-example,datencia/ionic2-jest-example