Rename requirements.txt file for dependabot to work

Author: sobolevn

.github/dependabot.yml

@@ -0,0 +1,15 @@
+version: 2
+updates:
+- package-ecosystem: pip
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "02:00"
+  open-pull-requests-limit: 10
+
+- package-ecosystem: github-actions
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "02:00"
+  open-pull-requests-limit: 10

.github/workflows/test.yml

@@ -43,7 +43,7 @@ jobs:
     - name: Install dependencies
       run: |
         pip install -U pip setuptools wheel
-        pip install -r dev-requirements.txt
+        pip install -r requirements.txt
     - name: Run linters
       run: |
         mypy .