fix(dev-infra): api-golden tool does not specify a tsconfig and breaks for consumers (#42749)

Tools that are shipped as a Bazel rule with the shared dev-infra
tool require a specific `tsconfig` as otherwise `ts_library` will
accidentally look for a tsconfig in `@npm//:tsconfig` and the build
will fail. We bring in our dev-infra tsconfig and reference it
explicitly.

PR Close #42749

dev-infra/BUILD.bazel

@@ -2,6 +2,8 @@ load("@build_bazel_rules_nodejs//:index.bzl", "pkg_npm")
 load("@npm//@bazel/typescript:index.bzl", "ts_library")
 load("//dev-infra:index.bzl", "ng_dev_rolled_up_generated_file")
 
+exports_files(["tsconfig.json"])
+
 ts_library(
     name = "cli",
     srcs = [
@@ -43,6 +45,9 @@ pkg_npm(
     name = "npm_package",
     srcs = [
         "index.bzl",
+        # Some tools within `dev-infra` which are shipped as Bazel rules might
+        # rely on a tsconfig file. We bring the config into the NPM package.
+        "tsconfig.json",
         "//dev-infra/bazel:files",
         "//dev-infra/benchmark:files",
     ],

dev-infra/bazel/api-golden/BUILD.bazel

@@ -15,6 +15,9 @@ ts_library(
         "index_npm_packages.ts",
         "test_api_report.ts",
     ],
+    # A tsconfig needs to be specified as otherwise `ts_library` will look for the config
+    # in `//:package.json` and this breaks when the BUILD file is copied to `@npm//`.
+    tsconfig = "//dev-infra:tsconfig.json",
     deps = [
         "@npm//@bazel/runfiles",
         "@npm//@microsoft/api-extractor",