ci: Add ignore rules to CI jobs (#21)

* chore: Drop unused test files

* ci: correct Buildkite job-skipping rules

* ci: Add ignore rules to Github unit test action

Author: JoshMock

.buildkite/certs/ca.crt

@@ -2,12 +2,13 @@
   "jobs": [
     {
       "enabled": true,
-      "pipeline_slug": "elasticsearch-js-integration-tests",
+      "pipeline_slug": "elasticsearch-serverless-js-integration-tests",
       "allowed_repo_permissions": ["admin", "write"],
       "build_on_commit": true,
       "skip_ci_on_only_changed": [
         "\\.md$",
         "\\.asciidoc$",
+        "\\.txt$",
         "^docs\\/",
         "^\\.ci\\/",
         "^scripts\\/",

.buildkite/certs/ca.key

@@ -1,6 +1,18 @@
 ---
 name: Unit tests
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore: &ignore
+      - '**/*.md'
+      - '**/*.asciidoc'
+      - '**/*.txt'
+      - 'docs/**'
+      - '.ci/**'
+      - '.buildkite/**'
+      - 'scripts/**'
+      - 'catalog-info.yaml'
+  pull_request:
+    paths-ignore: *ignore
 
 jobs:
   test:

.buildkite/certs/testnode.crt

@@ -67,7 +67,6 @@ scripts
 .ci
 .travis.yml
 .buildkite
-certs
 .github
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md