chore(deps): bump skills/action-text-variables from 1 to 2

Bumps [skills/action-text-variables](https://github.com/skills/action-text-variables) from 1 to 2.
- [Release notes](https://github.com/skills/action-text-variables/releases)
- [Commits](skills/action-text-variables@v1...v2)

---
updated-dependencies:
- dependency-name: skills/action-text-variables
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/finish-exercise.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Build congratulations message from template
         id: build-new-readme
-        uses: skills/action-text-variables@v1
+        uses: skills/action-text-variables@v2
         with:
           template-file: exercise-toolkit/markdown-templates/readme/exercise-finished.md
           template-vars: |
@@ -65,7 +65,7 @@ jobs:
 
       - name: Build message - exercise finished
         id: build-finish-message
-        uses: skills/action-text-variables@v1
+        uses: skills/action-text-variables@v2
         with:
           template-file: exercise-toolkit/markdown-templates/step-feedback/exercise-finished.md
           template-vars: |

.github/workflows/start-exercise.yml

@@ -68,7 +68,7 @@ jobs:
 
       - name: Build welcome message from template
         id: build-issue-description
-        uses: skills/action-text-variables@v1
+        uses: skills/action-text-variables@v2
         with:
           template-file: exercise-toolkit/markdown-templates/step-feedback/welcome.md
           template-vars: |
@@ -111,7 +111,7 @@ jobs:
 
       - name: Build welcome message from template
         id: build-new-readme
-        uses: skills/action-text-variables@v1
+        uses: skills/action-text-variables@v2
         with:
           template-file: exercise-toolkit/markdown-templates/readme/exercise-started.md
           template-vars: |