* DevEnv: updates sinon 1.17.6 -> 8.1.1

* DevEnv: updates zone.js 0.7.8 -> 0.10.2

* DevEnv: updates brace 0.10.0 -> 0.11.1

* DevEnv: updates eventemitter3 2.0.3 -> 4.0.0

* DevEnv: updates file-saver 1.3.8 -> 2.0.2

* DevEnv: updates is-hotkey 0.1.4 -> 0.1.6

* DevEnv: updates mousetrap 1.6.3 -> 1.6.5

* DevEnv: updates prismjs 1.16.0 -> 1.19.0

* DevEnv: updates search-query-parser 1.5.2 -> 1.5.4

* DevEnv: updates tether 1.4.5 -> 1.4.7

* DevEnv: updates xss 1.0.3 -> 1.0.6

* Revert "DevEnv: updates zone.js 0.7.8 -> 0.10.2"

* DevEnv: updates sinon 1.17.6 -> 8.1.1 in grafana-data package

* DevEnv: updates @types/sinon 7.0.11 -> 7.5.2 in grafana-data package

* DevEnv: updates eventemitter import

* DevEnv: updates lockfile