improve permissions + small sec stuff

.github/workflows/tests.yml

@@ -5,20 +5,24 @@ on:
   push:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   changes:
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       pull-requests: read
     outputs:
       server: ${{ steps.filter.outputs.server }}
       client: ${{ steps.filter.outputs.client }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Detect changed paths
-        uses: dorny/paths-filter@v3
+        uses: dorny/paths-filter@6852f92c20ea7fd3b0c25de3b5112db3a98da050 # v3
         id: filter
         with:
           filters: |
@@ -42,12 +46,12 @@ jobs:
         working-directory: Overlord-Server
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Setup Bun
-        uses: oven-sh/setup-bun@v2
+        uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
         with:
-          bun-version: latest
+          bun-version: 1.3.14
 
       - name: Install server dependencies
         run: bun install --frozen-lockfile
@@ -68,10 +72,10 @@ jobs:
         working-directory: Overlord-Client
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
         with:
           go-version-file: Overlord-Client/go.mod
           cache: true