Comply with OpenSSF enforcement

Author: AndresGuzman-Ballen

.github/workflows/gh-pages.yml

@@ -1,4 +1,8 @@
 name: github pages
+
+# Declare default permissions as read only.
+permissions: read-all
+
 on:
   push:
     branches:

.github/workflows/mandelbrot_build_test_deploy.yml

@@ -1,5 +1,8 @@
 name: mandelbrot package
 
+# Declare default permissions as read only.
+permissions: read-all
+
 on:
   push:
     branches:

.github/workflows/mcpi_build_test_upload.yml

@@ -1,5 +1,8 @@
 name: mcpi package
 
+# Declare default permissions as read only.
+permissions: read-all
+
 on:
   push:
     branches:

.github/workflows/python_style_checks.yml

@@ -2,6 +2,9 @@
 
 name: coding style
 
+# Declare default permissions as read only.
+permissions: read-all
+
 # Controls when the action will run. Triggers the workflow on push or pull request
 # events but only for the master branch
 on: