chore: define username/pass in m2-settings.xml to use with ossrh (#21)

* chore: define username/pass in m2-settings.xml to use with ossrh

* ci: drop an env var that _probably_ isn't needed

.github/workflows/release-please.yaml

@@ -39,10 +39,10 @@ jobs:
           distribution: 'zulu'
           java-version: 17
           server-id: ossrh
-          server-username: MAVEN_USERNAME # username for Sonatype JIRA login
-          server-password: MAVEN_PASSWORD # password for Sonatype JIRA login
+          server-username: ${{ secrets.OSSRH_USERNAME }} # username for Sonatype JIRA login
+          server-password: ${{ secrets.OSSRH_TOKEN }} # password for Sonatype JIRA login
           gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }} # Full private key blob
-          gpg-passphrase: SIGN_KEY_PASSWORD # Password chosen when creating the GPG key
+          gpg-passphrase: ${{ secrets.SIGN_KEY_PASS }} # Password chosen when creating the GPG key
 
       - name: Cache Maven packages
         uses: actions/cache@v3.3.1
@@ -54,8 +54,8 @@ jobs:
       - name: Deploy with Maven
         run: |
           mvn --batch-mode \
+          --settings release/m2-settings.xml \
           clean deploy
         env:
           MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
-          SIGN_KEY_PASSWORD: ${{ secrets.SIGN_KEY_PASS }}

release/m2-settings.xml

@@ -0,0 +1,9 @@
+<settings>
+    <servers>
+        <server>
+            <id>ossrh</id>
+            <username>${env.MAVEN_USERNAME}</username>
+            <password>${env.MAVEN_PASSWORD}</password>
+        </server>
+    </servers>
+</settings>