Add a workflow step to increase dev version automatically

+ refactor all jobs in one main workflow

.github/workflows/increase-dev-version.yaml

@@ -0,0 +1,37 @@
+name: increase-dev-version
+
+on:
+  workflow_call:
+
+jobs:
+  change-version:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    permissions: write-all
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - name: Install packages
+        run: |
+          install.packages("usethis")
+        shell: Rscript {0}
+
+      - name: Change DESCRIPTION file
+        run: |
+          if(usethis:::is_dev_version()){
+            desc::desc_set_version(version = usethis:::bump_version()[["dev"]])
+          }
+        shell: Rscript {0}
+
+      - uses: EndBug/add-and-commit@v9
+        if: ${{ success() }}
+        with:
+          message: '🤖 Bump development version.'
+          default_author: github_actions
+          add: 'DESCRIPTION'

.github/workflows/main-workflow.yaml

@@ -0,0 +1,42 @@
+name: Main-Workflow
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+
+
+jobs:
+  increase-dev-version: # only do that when actually merging in main/develop branch
+    if: github.event_name != 'pull_request'
+    uses: ./.github/workflows/increase-dev-version.yaml
+  R-CMD-Check:
+    if: ${{ always() }}
+    uses: Open-Systems-Pharmacology/Workflows/.github/workflows/R-CMD-check-build.yml@main
+    with:
+      install-pksim: true
+      install-rClr: true
+      extra-packages: |
+        ospsuite.utils=github::Open-Systems-Pharmacology/OSPSuite.RUtils
+        tlf=github::Open-Systems-Pharmacology/TLF-Library
+  test-coverage:
+    if: ${{ always() }}
+    needs: [R-CMD-Check]
+    uses: Open-Systems-Pharmacology/Workflows/.github/workflows/test-pkg-and-coverage.yml@main
+    with:
+      install-pksim: true
+      install-rClr: true
+      extra-packages: |
+        ospsuite.utils=github::Open-Systems-Pharmacology/OSPSuite.RUtils
+        tlf=github::Open-Systems-Pharmacology/TLF-Library
+  pkgdown:
+    if: ${{ always() }}
+    needs: [R-CMD-Check]
+    uses: Open-Systems-Pharmacology/Workflows/.github/workflows/pkgdown.yml@main
+    with:
+      install-pksim: true
+      install-rClr: true
+      extra-packages: |
+        ospsuite.utils=github::Open-Systems-Pharmacology/OSPSuite.RUtils
+        tlf=github::Open-Systems-Pharmacology/TLF-Library