Clean up at .github due to repo rename (#23580)

* update .github after repo rename

* update

* Update PULL_REQUEST_TEMPLATE.md

---------

Co-authored-by: M-ZubairAhmed <m-zubairahmed@protonmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

.github/workflows/artifacts.yml

@@ -75,7 +75,7 @@ jobs:
       SENTRY_ORG: ${{ secrets.MM_SERVER_SENTRY_ORG }}
       SENTRY_PROJECT: ${{ secrets.MM_SERVER_SENTRY_PROJECT }}
     steps:
-      - name: cd/Checkout mattermost-server
+      - name: cd/Checkout mattermost project
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
       - name: cd/Create Sentry release
         uses: getsentry/action-release@85e0095193a153d57c458995f99d0afd81b9e5ea # v1.3.0

.github/workflows/esrupgrade-common.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest-8-cores
     timeout-minutes: 30
     steps:
-      - name: Checkout mattermost-server
+      - name: Checkout mattermost project
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
       - name: Run docker compose
         run: |
@@ -97,7 +97,7 @@ jobs:
     runs-on: ubuntu-latest-8-cores
     timeout-minutes: 30
     steps:
-      - name: Checkout mattermost-server
+      - name: Checkout mattermost project
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
       - name: Run docker compose
         run: |

.github/workflows/server-ci-template.yml

@@ -147,7 +147,7 @@ jobs:
           cd ..
           git clone --depth=1 --no-single-branch https://github.com/mattermost/mattermost-api-reference.git
           cd mattermost-api-reference
-          echo "Trying to checkout the same branch on mattermost-api-reference as mattermost-server"
+          echo "Trying to checkout the same branch on mattermost-api-reference as mattermost"
           git checkout $GITHUB_HEAD_REF || git checkout $GITHUB_BASE_REF || true
           make build
           cd ../mattermost