feat(cicd): Disabled actions running on forks by default

Fixes #1315

.github/workflows/readme-updater.yml

@@ -9,6 +9,7 @@ on:
 jobs:
 
   update-readme:
+    if: env.RUN_UPDATERS == '1'
     runs-on: ubuntu-latest
     permissions:
       contents: write

.github/workflows/remote-wordlists-updater.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   update-files:
+    if: env.RUN_UPDATERS == '1'
     permissions:
       contents: write
     runs-on: ubuntu-latest

.github/workflows/wordlist-updater_awesome-list-of-secrets-in-environment-variables.yml

@@ -6,6 +6,7 @@ on:
 
 jobs:
   update_awesome-environment-variable-names:
+    if: env.RUN_UPDATERS == '1'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2

.github/workflows/wordlist-updater_fuzzing_etc_files.yml

@@ -10,6 +10,7 @@ on:
 
 jobs:
   updatejob:
+    if: env.RUN_UPDATERS == '1'
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
     # Steps represent a sequence of tasks that will be executed as part of the job