Upgrade RxJS to 7.6.8 and migrate API usage

Co-authored-by: Ajay <ajay.sridhar@sourcegraph.com>

Author: sourcegraph-commit-signing-s2[bot]

package.json

@@ -90,7 +90,7 @@
     "@types/ws": "^6.0.1",
     "concurrently": "^4.1.0",
     "path-browserify": "^1.0.0",
-    "rxjs": "^6.3.3",
+    "rxjs": "^7.6.8",
     "tagged-template-noop": "^2.1.0",
     "vscode-jsonrpc": "^4.0.0",
     "vscode-languageserver-protocol": "^3.13.0",

src/sourcegraph-python.ts

@@ -157,10 +157,10 @@ export function activate(ctx: sourcegraph.ExtensionContext = DUMMY_CTX): void {
     //
     // The Python language server waits for the first workspace/didChangeConfiguration notification to start
     // pre-parsing files in the workspace.
-    combineLatest(
+    combineLatest([
         fromSubscribable<void>(sourcegraph.configuration),
-        connectionManager.connections
-    )
+        connectionManager.connections,
+    ])
         .pipe(
             map(([, connections]) => ({
                 config: sourcegraph.configuration.get().value,

yarn.lock

@@ -4962,6 +4962,13 @@ rxjs@^6.3.3:
   dependencies:
     tslib "^1.9.0"
 
+rxjs@^7.6.8:
+  version "7.8.1"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.8.1.tgz#6f6f3d99ea8044291efd92e7c7fcf562c4057543"
+  integrity sha512-AA3TVj+0A2iuIoQkWEK/tqFjBq2j+6PO6Y0zJcvzLAFhEFIO3HL0vls9hWLncZbAAbK0mar7oZ4V079I/qPMxg==
+  dependencies:
+    tslib "^2.1.0"
+
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
@@ -5570,6 +5577,11 @@ tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
 
+tslib@^2.1.0:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.2.tgz#703ac29425e7b37cd6fd456e92404d46d1f3e4ae"
+  integrity sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==
+
 tslint-config-prettier@^1.6.0:
   version "1.15.0"
   resolved "https://registry.yarnpkg.com/tslint-config-prettier/-/tslint-config-prettier-1.15.0.tgz#76b9714399004ab6831fdcf76d89b73691c812cf"