test: add node16 testing of fs patches

Author: jbedard

MODULE.bazel

@@ -77,6 +77,13 @@ node_dev = use_extension(
     "node",
     dev_dependency = True,
 )
+use_repo(node_dev, "node16_linux_amd64")
+use_repo(node_dev, "node16_darwin_arm64")
+use_repo(node_dev, "node16_darwin_amd64")
+use_repo(node_dev, "node16_linux_arm64")
+use_repo(node_dev, "node16_linux_s390x")
+use_repo(node_dev, "node16_linux_ppc64le")
+use_repo(node_dev, "node16_windows_amd64")
 use_repo(node_dev, "node18_linux_amd64")
 use_repo(node_dev, "node18_darwin_arm64")
 use_repo(node_dev, "node18_darwin_amd64")
@@ -106,6 +113,10 @@ use_repo(node_dev, "node24_linux_s390x")
 use_repo(node_dev, "node24_linux_ppc64le")
 use_repo(node_dev, "node24_windows_amd64")
 node_dev.toolchain(node_version = "18.20.4")
+node_dev.toolchain(
+    name = "node16",
+    node_version = "16.20.0",
+)
 node_dev.toolchain(
     name = "node18",
     node_version = "18.20.4",

js/private/test/node-patches/BUILD.bazel

@@ -12,6 +12,7 @@ TESTS = [
 
 # Multiple node toolchains for testing across versions
 TOOLCHAINS_NAMES = [
+    "node16",
     "node18",
     "node20",
     "node22",