v9.8.0 Support to inject additional headers

What's Changed

From v9.8.0, you can inject additional headers except for authorization header like this.

const config = {
  channelAccessToken: "test_channel_access_token",
  defaultHeaders: {
    hoge: "additional-value" // here
  },
};
const client = new messagingApi.MessagingApiClient(config);

• Allow to inject default header from clients by @Yang-33 in #1230

line-openapi updates

• Update line-openapi digest to 954b163 by @renovate in #1216
• Update line-openapi digest to 0e669d0 by @renovate in #1227

Dependency updates

• Update suzuki-shunsuke/pinact-action action to v0.2.2 by @renovate in #1211
• Update suzuki-shunsuke/pinact-action action to v1 by @renovate in #1212
• Update dependency org.apache.maven.plugins:maven-surefire-plugin to v3.5.3 by @renovate in #1213
• Update dependency typedoc to ^0.28.0 by @renovate in #1195
• Update vitest monorepo to v3.1.1 by @renovate in #1215
• Update dependency express to v5 by @renovate in #1217
• Update dependency @types/node to v22.13.15 by @renovate in #1219
• Update dependency @types/node to v22.13.16 by @renovate in #1220
• Update dependency io.pebbletemplates:pebble to v3.2.4 by @renovate in #1223
• Update dependency @types/node to v22.13.17 by @renovate in #1222
• Update dependency typedoc-plugin-markdown to v4.6.1 by @renovate in #1224
• Update dependency @types/node to v22.14.0 by @renovate in #1225
• Bump vite from 5.4.15 to 5.4.16 by @dependabot in #1218

Other Changes

• Skip create PR when only git submodule is updated by @Yang-33 in #1210
• Remove deprecated link by @eucyt in #1226
• Delete unused code by @Yang-33 in #1229

Full Changelog: v9.7.3...v9.8.0

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This release is prepared by @Yang-33