Update dependency rxjs to v7.8.0 (#63399)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

packages/grafana-data/package.json

@@ -51,7 +51,7 @@
     "papaparse": "5.3.2",
     "react-use": "17.4.0",
     "regenerator-runtime": "0.13.10",
-    "rxjs": "7.5.7",
+    "rxjs": "7.8.0",
     "tinycolor2": "1.4.2",
     "tslib": "2.4.1",
     "uplot": "1.6.24",

packages/grafana-runtime/package.json

@@ -44,7 +44,7 @@
     "@sentry/browser": "6.19.7",
     "history": "4.10.1",
     "lodash": "4.17.21",
-    "rxjs": "7.5.7",
+    "rxjs": "7.8.0",
     "systemjs": "0.20.19",
     "tslib": "2.4.1"
   },

packages/grafana-ui/package.json

@@ -103,7 +103,7 @@
     "react-transition-group": "4.4.5",
     "react-use": "17.4.0",
     "react-window": "1.8.8",
-    "rxjs": "7.5.7",
+    "rxjs": "7.8.0",
     "slate": "0.47.9",
     "slate-plain-serializer": "0.7.13",
     "slate-react": "0.22.10",