Update doc build process

1. Update pull request template isntruction for doc build
2. Update requirements and doc.yml for sphinx installation

Signed-off-by: RibhuDP <ribhu.daspurkayastha@analog.com>

.github/pull_request_template.md

@@ -15,4 +15,4 @@ If this PR contains a breaking change, list dependent PRs and try to push all re
 - [ ] I have build all projects affected by the changes in this PR
 - [ ] I have tested in hardware affected projects, at the relevant boards
 - [ ] I have signed off all commits from this PR
-- [ ] I have updated the documentation by running CI/gen_doc/docs/gen_sysobj_doc.m script locally, if applies.
+- [ ] I have updated the documentation by running /docs/source/reference_api/gen_sysobj_doc.m script locally, if applies.

.github/workflows/doc.yml

@@ -11,9 +11,9 @@ jobs:
         with:
           submodules: recursive
       - name: Set up Python 3.7
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.7
+          python-version: 3.x
 
       - name: Install dependencies
         run: |

docs/source/requirements.txt

@@ -1,3 +1,3 @@
-sphinx
 myst_parser
+sphinx
 https://github.com/analogdevicesinc/doctools/releases/download/latest/adi-doctools.tar.gz