vscode-extensions/rust-analyzer: pin rollup dep to avoid regression.

pkgs/development/tools/rust/rust-analyzer/update.sh

@@ -51,6 +51,9 @@ build_deps="../../../../misc/vscode-extensions/rust-analyzer/build-deps"
 jq '{ name, version, dependencies: (.dependencies + .devDependencies) }' "$node_src/package.json" \
     >"$build_deps/package.json.new"
 
+# FIXME: rollup@2.55.0 breaks the build: https://github.com/rollup/rollup/issues/4195
+sed 's/"rollup": ".*"/"rollup": "=2.51.1"/' --in-place "$build_deps/package.json.new"
+
 if cmp --quiet "$build_deps"/package.json{.new,}; then
     echo "package.json not changed, skip updating nodePackages"
     rm "$build_deps"/package.json.new

pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json

@@ -17,7 +17,7 @@
     "eslint": "^7.30.0",
     "glob": "^7.1.6",
     "mocha": "^9.0.2",
-    "rollup": "^2.51.1",
+    "rollup": "=2.51.1",
     "tslib": "^2.3.0",
     "typescript": "^4.3.5",
     "typescript-formatter": "^7.2.2",