Use authentication tokens for PM GitLab runner

Starting with GitLab 16, there is a new mechanism to authenticate the
runners via authentication tokens, so use it instead.  Older tokens and
runners are also removed, as they are no longer used.

With the new way of managing tokens, both the tags and the locked state
are managed from the GitLab web page.

See: https://docs.gitlab.com/ee/ci/runners/new_creation_workflow.html
Reviewed-by: Aleix Boné <abonerib@bsc.es>

m/hut/gitlab-runner.nix

@@ -1,9 +1,8 @@
 { pkgs, lib, config, ... }:
 
 {
-  age.secrets.ovniToken.file = ../../secrets/ovni-token.age;
-  age.secrets.gitlabToken.file = ../../secrets/gitlab-bsc-es-token.age;
-  age.secrets.nosvToken.file = ../../secrets/nosv-token.age;
+  age.secrets.gitlabRunnerShellToken.file = ../../secrets/gitlab-runner-shell-token.age;
+  age.secrets.gitlabRunnerDockerToken.file = ../../secrets/gitlab-runner-docker-token.age;
 
   services.gitlab-runner = {
     enable = true;
@@ -11,20 +10,14 @@
     services = let
       common-shell = {
         executor = "shell";
-        tagList = [ "nix" "xeon" ];
-        registrationFlags = [
-          # Using space doesn't work, and causes it to misread the next flag
-          "--locked='false'"
-        ];
         environmentVariables = {
           SHELL = "${pkgs.bash}/bin/bash";
         };
       };
       common-docker = {
+        executor = "docker";
         dockerImage = "debian:stable";
-        tagList = [ "docker" "xeon" ];
         registrationFlags = [
-          "--locked='false'"
           "--docker-network-mode host"
         ];
         environmentVariables = {
@@ -33,19 +26,12 @@
         };
       };
     in {
-      # For gitlab.bsc.es
-      gitlab-bsc-es-shell = common-shell // {
-        registrationConfigFile = config.age.secrets.gitlabToken.path;
-      };
-      gitlab-bsc-es-docker = common-docker // {
-        registrationConfigFile = config.age.secrets.gitlabToken.path;
-      };
       # For pm.bsc.es/gitlab
       gitlab-pm-shell = common-shell // {
-        registrationConfigFile = config.age.secrets.ovniToken.path;
+        authenticationTokenConfigFile = config.age.secrets.gitlabRunnerShellToken.path;
       };
       gitlab-pm-docker = common-docker // {
-        registrationConfigFile = config.age.secrets.ovniToken.path;
+        authenticationTokenConfigFile = config.age.secrets.gitlabRunnerDockerToken.path;
       };
     };
   };