[openwrt/openwrt] CI: bump actions/checkout action to v3

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/69414201aeaf25e6363c490ae4ecd60bd454949d

commit 69414201aeaf25e6363c490ae4ecd60bd454949d
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Wed Oct 12 15:24:11 2022 +0200

    CI: bump actions/checkout action to v3
    
    Bump actions/checkout action to v3 on every workflow to mute node
    deprecation warning.
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
    (cherry picked from commit 87c69d73bb4021bf3a26217b3a652ce262637b1e)
---
 .github/workflows/formal.yml |  2 +-
 .github/workflows/kernel.yml | 12 ++++++------
 .github/workflows/tools.yml  |  6 +++---
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/formal.yml b/.github/workflows/formal.yml
index 8df31d1751..8083c5832c 100644
--- a/.github/workflows/formal.yml
+++ b/.github/workflows/formal.yml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout at v2
+      - uses: actions/checkout at v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
diff --git a/.github/workflows/kernel.yml b/.github/workflows/kernel.yml
index 25d6d265eb..f29b18d910 100644
--- a/.github/workflows/kernel.yml
+++ b/.github/workflows/kernel.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
 
       - name: Set lower case owner name
         id: lower_owner
@@ -83,30 +83,30 @@ jobs:
 
     steps:
       - name: Checkout master directory
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           path: openwrt
 
       - name: Checkout packages feed
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           repository: openwrt/packages
           path: openwrt/feeds/packages
 
       - name: Checkout luci feed
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           repository: openwrt/luci
           path: openwrt/feeds/luci
 
       - name: Checkout routing feed
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           repository: openwrt/routing
           path: openwrt/feeds/routing
 
       - name: Checkout telephony feed
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           repository: openwrt/telephony
           path: openwrt/feeds/telephony
diff --git a/.github/workflows/tools.yml b/.github/workflows/tools.yml
index f483615363..2661782f42 100644
--- a/.github/workflows/tools.yml
+++ b/.github/workflows/tools.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           path: openwrt
 
@@ -102,7 +102,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           path: 'openwrt'
 
@@ -175,7 +175,7 @@ jobs:
           echo "OWNER_LC=${OWNER,,}" >> "$GITHUB_ENV"
 
       - name: Checkout
-        uses: actions/checkout at v2
+        uses: actions/checkout at v3
         with:
           path: 'openwrt'