chore: Add semver workflow

.github/workflows/semver.yml

@@ -0,0 +1,40 @@
+name: Check semver
+on:
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  semver:
+    name: Check semver
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+
+      - name: Get latest tag
+        id: tag
+        run: |
+          echo "ref=$(git describe --tags --abbrev=0)" >> "$GITHUB_OUTPUT"
+
+      - uses: mozilla/actions/nss@25cb84d060946c0ad6d2c3f79da479b16d180d71 # v1.1.0
+        with:
+          version-file: min_version.txt
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: mozilla/actions/semver@b179863eaeacb7344a9dd1c9076917787fb453a0
+        with:
+          base-ref: ${{ steps.tag.outputs.ref }}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nss-rs"
-version = "0.8.0"
+version = "0.9.0"
 authors = ["Martin Thomson <mt@lowentropy.net>", "Andy Leiserson <aleiserson@mozilla.com>", "John M. Schanck <jschanck@mozilla.com>", "Benjamin Beurdouche <beurdouche@mozilla.com>", "Anna Weine <anna.weine@mozilla.com>"]
 categories = ["network-programming", "web-programming"]
 keywords = ["nss", "crypto", "mozilla", "firefox"]