Switch from pip3 to pipx in JupyterLab tests

jupyterlab/main.test.ts

@@ -22,7 +22,7 @@ const executeScriptInContainerWithPip = async (
 }> => {
   const instance = findResourceInstance(state, "coder_script");
   const id = await runContainer(image);
-  const respPip = await execContainer(id, [shell, "-c", "apk add py3-pip"]);
+  const respPipx = await execContainer(id, [shell, "-c", "apk add pipx"]);
   const resp = await execContainer(id, [shell, "-c", instance.script]);
   const stdout = resp.stdout.trim().split("\n");
   const stderr = resp.stderr.trim().split("\n");
@@ -40,22 +40,22 @@ describe("jupyterlab", async () => {
     agent_id: "foo",
   });
 
-  it("fails without pip3", async () => {
+  it("fails without pipx", async () => {
     const state = await runTerraformApply(import.meta.dir, {
       agent_id: "foo",
     });
     const output = await executeScriptInContainer(state, "alpine");
     expect(output.exitCode).toBe(1);
     expect(output.stdout).toEqual([
       "\u001B[0;1mInstalling jupyterlab!",
-      "pip3 is not installed",
-      "Please install pip3 in your Dockerfile/VM image before running this script",
+      "pipx is not installed",
+      "Please install pipx in your Dockerfile/VM image before running this script",
     ]);
   });
 
-  // TODO: Add faster test to run with pip3.
+  // TODO: Add faster test to run with pipx.
   // currently times out.
-  // it("runs with pip3", async () => {
+  // it("runs with pipx", async () => {
   //   ...
   //   const output = await executeScriptInContainerWithPip(state, "alpine");
   //   ...