OWNERS: Grant roller account owners

Also remove some former team members.

Change-Id: Ic0d717b576602727f77958c8adb8786423909920
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/236898
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
Reviewed-by: Keir Mierle <keir@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>

OWNERS

diff --git a/OWNERS b/OWNERS
index cc86f40..0523f18 100644
--- a/OWNERS
+++ b/OWNERS
@@ -5,10 +5,10 @@
 ewout@google.com
 frolv@google.com
 hepler@google.com
-jaredweinstein@google.com
-jethier@google.com
 keir@google.com
 konkers@google.com
 mohrr@google.com
 tonymd@google.com
 tpudlik@google.com
+
+per-file .bazelversion=file:/ROLLER_OWNERS

ROLLER_OWNERS

diff --git a/ROLLER_OWNERS b/ROLLER_OWNERS
new file mode 100644
index 0000000..3a75bf0
--- /dev/null
+++ b/ROLLER_OWNERS
@@ -0,0 +1 @@
+pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com

third_party/OWNERS

diff --git a/third_party/OWNERS b/third_party/OWNERS
index bf71f15..5ab7945 100644
--- a/third_party/OWNERS
+++ b/third_party/OWNERS
@@ -1 +1 @@
-per-file pigweed=pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com
+per-file pigweed=file:/ROLLER_OWNERS