gems: update base64 requirement from ~> 0.2.0 to >= 0.2, < 0.4

Updates the requirements on [base64](https://github.com/ruby/base64) to permit the latest version.
- [Release notes](https://github.com/ruby/base64/releases)
- [Commits](https://github.com/ruby/base64/compare/v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: base64
  dependency-version: 0.3.0
  dependency-type: direct:production
...

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

.github/renovate.json5

@@ -40,7 +40,7 @@
   customManagers: [
     {
       customType: "regex",
-      managerFilePatterns: ["/.rb$/", "/^Rakefile$/"],
+      fileMatch: ["\.rb$", "^Rakefile$"],
       matchStrings: [
         "renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)\\s.*_version = '(?<currentValue>.*)'\\s"
       ]

.github/workflows/cd.yml

@@ -11,7 +11,7 @@ jobs:
   release-dockerimage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: Extract dyndnsd version from tag name
       run: |

.github/workflows/ci.yml

@@ -18,12 +18,13 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
+        - '3.0'
         - '3.1'
         - '3.2'
         - '3.3'
         - '3.4'
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
     - name: Set up Ruby ${{ matrix.ruby-version }}
       uses: ruby/setup-ruby@v1
       with:
@@ -37,7 +38,7 @@ jobs:
   actionlint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
     - name: Check workflow files
       run: |
         echo "::add-matcher::.github/actionlint-matcher.json"
@@ -50,6 +51,6 @@ jobs:
       image: ghcr.io/renovatebot/renovate
       options: --user root
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
     - name: Check Renovate config
       run: renovate-config-validator --strict

docker/Dockerfile

@@ -1,11 +1,11 @@
-FROM alpine:3.22.1
+FROM alpine:3.21.3
 
 EXPOSE 5353 8080
 
 ARG DYNDNSD_VERSION
 
 RUN apk --no-cache add openssl ca-certificates && \
-    apk --no-cache add ruby ruby-webrick && \
+    apk --no-cache add ruby ruby-etc ruby-io-console ruby-json ruby-webrick && \
     apk --no-cache add --virtual .build-deps linux-headers ruby-dev build-base tzdata && \
     gem install --no-document dyndnsd -v ${DYNDNSD_VERSION} && \
     rm -rf /usr/lib/ruby/gems/*/cache/ && \

docker/ci/Dockerfile

@@ -1,11 +1,11 @@
-FROM alpine:3.22.1
+FROM alpine:3.21.3
 
 EXPOSE 5353 8080
 
 COPY pkg/dyndnsd-*.gem /tmp/dyndnsd.gem
 
 RUN apk --no-cache add openssl ca-certificates && \
-    apk --no-cache add ruby ruby-webrick && \
+    apk --no-cache add ruby ruby-etc ruby-io-console ruby-json ruby-webrick && \
     apk --no-cache add --virtual .build-deps linux-headers ruby-dev build-base tzdata && \
     gem install --no-document /tmp/dyndnsd.gem && \
     rm -rf /usr/lib/ruby/gems/*/cache/ && \

dyndnsd.gemspec

@@ -27,9 +27,9 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 3.0'
 
-  s.add_dependency 'async', '>= 1.31', '< 2.29'
+  s.add_dependency 'async', '~> 1.31.0'
   s.add_dependency 'async-dns', '~> 1.3.0'
-  s.add_dependency 'base64', '~> 0.2.0' # needed for async
+  s.add_dependency 'base64', '>= 0.2', '< 0.4' # needed for async
   s.add_dependency 'logger', '>= 1.6', '< 1.8'
   s.add_dependency 'metriks'
   s.add_dependency 'opentelemetry-exporter-jaeger', '~> 0.22.0'
@@ -44,8 +44,8 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rack-test'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rspec'
-  s.add_development_dependency 'rubocop', '~> 1.80.0'
+  s.add_development_dependency 'rubocop', '~> 1.75.1'
   s.add_development_dependency 'rubocop-rake', '~> 0.7.1'
   s.add_development_dependency 'rubocop-rspec', '~> 3.6.0'
-  s.add_development_dependency 'solargraph', '~> 0.55.0'
+  s.add_development_dependency 'solargraph', '~> 0.49.0'
 end

lib/dyndnsd/updater/zone_transfer_server.rb

@@ -89,7 +89,7 @@ module Dyndnsd
       # @return [Array{Array{Object}}]
       def self.parse_endpoints(endpoint_list)
         endpoint_list.map { |addr_string| addr_string.split('@') }
-                     .map { |addr_parts| [addr_parts[0], addr_parts[1]&.to_i || 53] }
+                     .map { |addr_parts| [addr_parts[0], addr_parts[1].to_i || 53] }
                      .map { |addr| [:tcp, :udp].map { |type| [type] + addr } }
                      .flatten(1)
       end