Don't skip tests in nightly release (#41573)

Release Notes:

- N/A

.github/workflows/release_nightly.yml

@@ -33,7 +33,7 @@ jobs:
       shell: bash -euxo pipefail {0}
     timeout-minutes: 60
   run_tests_mac:
-    if: 'false'
+    if: github.repository_owner == 'zed-industries'
     runs-on: self-mini-macos
     steps:
     - name: steps::checkout_repo
@@ -68,7 +68,7 @@ jobs:
       shell: bash -euxo pipefail {0}
     timeout-minutes: 60
   run_tests_windows:
-    if: 'false'
+    if: github.repository_owner == 'zed-industries'
     runs-on: self-32vcpu-windows-2022
     steps:
     - name: steps::checkout_repo

tooling/xtask/src/tasks/workflows/run_tests.rs

@@ -302,7 +302,9 @@ pub(crate) fn run_platform_tests(platform: Platform) -> NamedJob {
     NamedJob {
         name: format!("run_tests_{platform}"),
         job: release_job(&[])
-            .cond(Expression::new("false"))
+            .cond(Expression::new(
+                "github.repository_owner == 'zed-industries'",
+            ))
             .runs_on(runner)
             .add_step(steps::checkout_repo())
             .add_step(steps::setup_cargo_config(platform))