workflows: update to use checkout v4

This resolves deprecation warnings on GitHub.

Signed-off-by: Mike Szczys <[email protected]>

.github/workflows/checkpatch.yml

@@ -13,7 +13,7 @@ jobs:
       image: zephyrprojectrtos/ci:v0.26.5
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           path: modules/lib/golioth
           fetch-depth: 0

.github/workflows/firebase-doxygen-main.yml

@@ -7,7 +7,7 @@ jobs:
   build_and_deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Doxygen
         run: sudo apt install doxygen graphviz
       - name: Generate Doxygen

.github/workflows/firebase-doxygen-pr.yml

@@ -4,7 +4,7 @@ jobs:
   build_and_preview:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Doxygen
         run: sudo apt install doxygen graphviz
       - name: Generate Doxygen

.github/workflows/gitlint.yml

@@ -13,7 +13,7 @@ jobs:
       image: jorisroovers/gitlint:0.19.1
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/pre-commit.yml

@@ -13,7 +13,7 @@ jobs:
       image: kiwicom/pre-commit:3.0.4
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/test_nrf52840dk.yml

@@ -21,7 +21,7 @@ jobs:
       ZEPHYR_SDK_INSTALL_DIR: /opt/toolchains/zephyr-sdk-0.16.3
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           path: modules/lib/golioth
 
@@ -109,7 +109,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: connection_tests
 

.github/workflows/test_nrf9160dk.yml

@@ -28,7 +28,7 @@ jobs:
       ZEPHYR_SDK_INSTALL_DIR: /opt/toolchains/zephyr-sdk-0.16.3
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           path: modules/lib/golioth
 
@@ -114,7 +114,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: connection_tests