dashboard: add linux-arm-aws to trybots

This change adds linux-arm-aws to the set of trybots. The related
changes include:
- Renaming the linux-arm builder to linux-arm-scaleway.
- Adding slowbot aliases which use linux-arm-aws as the default
  builder for linux-arm builds.

Fixes golang/go#35628
Fixes golang/go#40872
Updates golang/go#45064

Change-Id: Ib49f50e03fc4f766015fdd78080b804c2784a398
Reviewed-on: https://go-review.googlesource.com/c/build/+/303230
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/dashboard/builders_test.go b/dashboard/builders_test.go
index 9ac9560..4ab4c5d 100644
--- a/dashboard/builders_test.go
+++ b/dashboard/builders_test.go
@@ -97,17 +97,18 @@
 				"linux-386",
 				"linux-amd64",
 				"linux-amd64-race",
-				"misc-compile-other",
+				"linux-arm-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64",
-				"misc-compile-linuxarm",
-				"misc-compile-solaris",
 				"misc-compile-freebsd",
+				"misc-compile-linuxarm",
 				"misc-compile-mips",
 				"misc-compile-netbsd",
 				"misc-compile-openbsd",
+				"misc-compile-other",
 				"misc-compile-plan9",
 				"misc-compile-ppc",
+				"misc-compile-solaris",
 				"openbsd-amd64-68",
 				"windows-386-2008",
 				"windows-amd64-2016",
@@ -123,17 +124,18 @@
 				"linux-386",
 				"linux-amd64",
 				"linux-amd64-race",
-				"misc-compile-other",
+				"linux-arm-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64",
-				"misc-compile-linuxarm",
-				"misc-compile-solaris",
 				"misc-compile-freebsd",
+				"misc-compile-linuxarm",
 				"misc-compile-mips",
 				"misc-compile-netbsd",
 				"misc-compile-openbsd",
+				"misc-compile-other",
 				"misc-compile-plan9",
 				"misc-compile-ppc",
+				"misc-compile-solaris",
 				"openbsd-amd64-68",
 				"windows-386-2008",
 				"windows-amd64-2016",
@@ -149,6 +151,7 @@
 				"linux-386",
 				"linux-amd64",
 				"linux-amd64-race",
+				"linux-arm-aws",
 				"misc-compile-darwin",
 				"misc-compile-darwinarm64", // Starts with Go 1.16.
 				"misc-compile-freebsd",
@@ -180,6 +183,7 @@
 				"linux-386",
 				"linux-amd64",
 				"linux-amd64-race",
+				"linux-arm-aws",
 				"misc-compile-darwin",
 				"misc-compile-freebsd",
 				"misc-compile-linuxarm",
@@ -219,6 +223,7 @@
 				"linux-386",
 				"linux-amd64",
 				"linux-amd64-race",
+				"linux-arm-aws",
 				"netbsd-amd64-9_0",
 				"openbsd-386-68",
 				"openbsd-amd64-68",