Update package and install process (#1948)

.github/workflows/backport.yml

@@ -93,7 +93,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt -r requirements-dev.txt
+          pip install .[dev]
 
       - name: Prune non-${{matrix.target_branch}} rules
         env:

.github/workflows/get-target-branches.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          pip install .[dev]
 
       - id: get-branch-list
         run: |

.github/workflows/lock-versions.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt -r requirements-dev.txt
+          pip install .[dev]
 
       - name: Build release package
         run: |

.github/workflows/pythonpackage.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        pip install .[dev]
 
     - name: Python Lint
       run: |

.github/workflows/release-fleet.yml

@@ -49,7 +49,7 @@ jobs:
         run: |
           cd detection-rules
           python -m pip install --upgrade pip
-          pip install -r requirements.txt -r requirements-dev.txt
+          pip install .[dev]
 
       - name: Build release package
         run: |

.github/workflows/release-kibana.yml

@@ -41,7 +41,7 @@ jobs:
         run: |
           cd detection-rules
           python -m pip install --upgrade pip
-          pip install -r requirements.txt -r requirements-dev.txt
+          pip install .[dev]
 
       - name: Build release package
         run: |