chore(deps): bump actions/cache from 4 to 5

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/classic-autogpt-ci.yml

@@ -83,7 +83,7 @@ jobs:
       - name: Set up Python dependency cache
         # On Windows, unpacking cached dependencies takes longer than just installing them
         if: runner.os != 'Windows'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ runner.os == 'macOS' && '~/Library/Caches/pypoetry' || '~/.cache/pypoetry' }}
           key: poetry-${{ runner.os }}-${{ hashFiles('classic/original_autogpt/poetry.lock') }}

.github/workflows/classic-benchmark-ci.yml

@@ -55,7 +55,7 @@ jobs:
       - name: Set up Python dependency cache
         # On Windows, unpacking cached dependencies takes longer than just installing them
         if: runner.os != 'Windows'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ runner.os == 'macOS' && '~/Library/Caches/pypoetry' || '~/.cache/pypoetry' }}
           key: poetry-${{ runner.os }}-${{ hashFiles('classic/benchmark/poetry.lock') }}

.github/workflows/classic-forge-ci.yml

@@ -107,7 +107,7 @@ jobs:
       - name: Set up Python dependency cache
         # On Windows, unpacking cached dependencies takes longer than just installing them
         if: runner.os != 'Windows'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ runner.os == 'macOS' && '~/Library/Caches/pypoetry' || '~/.cache/pypoetry' }}
           key: poetry-${{ runner.os }}-${{ hashFiles('classic/forge/poetry.lock') }}

.github/workflows/classic-python-checks.yml

@@ -78,7 +78,7 @@ jobs:
           python-version: ${{ env.min-python-version }}
 
       - name: Set up Python dependency cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/pypoetry
           key: ${{ runner.os }}-poetry-${{ hashFiles(format('{0}/poetry.lock', matrix.sub-package)) }}
@@ -130,7 +130,7 @@ jobs:
           python-version: ${{ env.min-python-version }}
 
       - name: Set up Python dependency cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/pypoetry
           key: ${{ runner.os }}-poetry-${{ hashFiles(format('{0}/poetry.lock', matrix.sub-package)) }}