chore: make arborist run at the right cwd (#1071)

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CDX-764

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## Proposed changes


f218b3f

Before, oclif was changing the cwd of the process, making arborist work
without setting path. Now that it doesn't, we need to specify the path
option, like they did for other stuff.

patches/oclif+3.4.1.patch → patches/oclif+3.4.2.patch

@@ -1,5 +1,5 @@
 diff --git a/node_modules/oclif/lib/tarballs/build.js b/node_modules/oclif/lib/tarballs/build.js
-index 6dc6c06..14dc008 100644
+index 6dc6c06..c17846e 100644
 --- a/node_modules/oclif/lib/tarballs/build.js
 +++ b/node_modules/oclif/lib/tarballs/build.js
 @@ -11,6 +11,7 @@ const upload_util_1 = require("../upload-util");
@@ -30,7 +30,7 @@ index 6dc6c06..14dc008 100644
 +                path.join(workspaceRoot, 'package-lock.json') :
 +                path.join(workspaceRoot, 'npm-shrinkwrap.json');
              await fs.copy(lockpath, path.join(c.workspace(), path.basename(lockpath)));
-+            const arb = new Arborist();
++            const arb = new Arborist({path: c.workspace()});
 +            await arb.loadVirtual();
 +            await arb.buildIdealTree({
 +              update: {