Bump base64 from 0.2.0 to 0.3.0

Bumps [base64](https://github.com/ruby/base64) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/ruby/base64/releases)
- [Commits](ruby/base64@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: base64
  dependency-version: 0.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -29,7 +29,7 @@ GEM
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
     ast (2.4.3)
-    base64 (0.2.0)
+    base64 (0.3.0)
     benchmark (0.4.0)
     benchmark-ips (2.14.0)
     bigdecimal (3.1.9)
@@ -43,6 +43,7 @@ GEM
     erb (5.0.1)
     extconf_compile_commands_json (0.0.7)
     ffi (1.17.2)
+    ffi (1.17.2-x86_64-linux-gnu)
     fileutils (1.7.3)
     goodcheck (3.1.0)
       marcel (>= 1.0, < 2.0)
@@ -63,16 +64,14 @@ GEM
     logger (1.7.0)
     marcel (1.0.4)
     memory_profiler (1.1.0)
-    mini_portile2 (2.8.9)
     minitest (5.25.5)
     mutex_m (0.3.0)
     net-protocol (0.2.2)
       timeout
     net-smtp (0.5.1)
       net-protocol
     nkf (0.2.0)
-    nokogiri (1.18.8)
-      mini_portile2 (~> 2.8.2)
+    nokogiri (1.18.8-x86_64-linux-gnu)
       racc (~> 1.4)
     ostruct (0.6.1)
     parallel (1.27.0)
@@ -176,6 +175,7 @@ GEM
     zlib (3.2.1)
 
 PLATFORMS
+  x86_64-linux
 
 DEPENDENCIES
   abbrev