ci: set 3.10 in gh actions

Author: egregors

.github/workflows/nayn_bot.yml

@@ -18,10 +18,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@master
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v1
       with:
-        python-version: 3.9
+        python-version: 3.10
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/nayn_bot_dev.yml

@@ -14,10 +14,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@master
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v1
       with:
-        python-version: 3.9
+        python-version: 3.10
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

.github/workflows/pr.yml

@@ -8,11 +8,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v1
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.x
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip