[roll recipes_version.txt] environment: Don't specify --virtualenv-root

This option is being removed: pwrev/89541. Not specifying it merely
means it will be put inside the environment install directory.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/infra/recipes/+/89501

https://pigweed.googlesource.com/infra/recipes
recipes_version.txt Rolled-Commits: b3b266604a9a009..ac5c5fe46801844

GitOrigin-RevId: a01aa012591104d7a6ba8460f03401a93adbf062
Change-Id: Iba4dfe5c2888bd73de86cf7836919efcbad789c4
diff --git a/recipes_version.txt b/recipes_version.txt
index 3a92ce9..71b81a6 100644
--- a/recipes_version.txt
+++ b/recipes_version.txt
@@ -1 +1 @@
-b3b266604a9a0091f846ce6b2c8061da38f5a6c1
\ No newline at end of file
+ac5c5fe468018441efb2df3bb33ba32dd3aebedc
\ No newline at end of file