ci(workflows): update trigger to pull_request

Replaced `pull_request_target` with `pull_request` in workflow
triggers for consistency and improved security.

Author: steebchen

.github/workflows/docs-test.yml

@@ -1,5 +1,5 @@
 name: docs
-on: pull_request_target
+on: pull_request
 jobs:
   test:
     runs-on: ubuntu-latest

.github/workflows/e2e-test.yml

@@ -1,5 +1,5 @@
 name: e2e test all
-on: pull_request_target
+on: pull_request
 jobs:
   e2e:
     runs-on: ubuntu-latest

.github/workflows/integration-test.yml

@@ -1,5 +1,5 @@
 name: integration test all
-on: pull_request_target
+on: pull_request
 jobs:
   integration:
     timeout-minutes: 40

.github/workflows/lint-pr.yaml

@@ -1,6 +1,6 @@
 name: lint pr
 on:
-  pull_request_target:
+  pull_request:
     types:
       - opened
       - edited

.github/workflows/lint.yml

@@ -1,5 +1,5 @@
 name: lint all
-on: pull_request_target
+on: pull_request
 jobs:
   lint:
     name: lint

.github/workflows/test.yml

@@ -1,5 +1,5 @@
 name: test all
-on: pull_request_target
+on: pull_request
 jobs:
   test:
     runs-on: ubuntu-latest