[v10] Fix build-buildboxes timeouts

[wadells]

Backports #17314

I refactored build-buildboxes to uses multiple profiles. This greatly reduces the number of steps in the pipeline, allowing drone-runner-kube to successfully schedule the pipeline.

Furthermore, I also updated un-dronegen'ed pipelines to have same syntax as dronegen'd ones, which is nice for consistency.

Contributes to #17310

Testing

tag: https://drone.platform.teleport.sh/gravitational/teleport/16461
promote: https://drone.platform.teleport.sh/gravitational/teleport/16473
buildboxes: https://drone.platform.teleport.sh/gravitational/teleport/16462

The final buildboxes build was performed with the following diff to enable testing:

diff --git a/.drone.yml b/.drone.yml
index a99532449..feb73d98e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6990,6 +6990,7 @@ trigger:
     include:
     - master
     - branch/*
+    - walt/*
 workspace:
   path: /go/src/github.com/gravitational/teleport
 clone:
@@ -8675,6 +8676,6 @@ steps:
     WORKSPACE_DIR: /tmp/build-darwin-amd64-connect
 ---
 kind: signature
-hmac: 8188efa3bff7b0fbeeb294bb84af3f78d88eea44a9792a961fc4afeeebd40e6e
+hmac: 82d3e78c39cf13f05f66ef36fd6335daa6621bfc713fabbdbbfe547328af90a2
 
 ...