Bump @slack/web-api from 7.13.0 to 7.15.0

Bumps [@slack/web-api](https://github.com/slackapi/node-slack-sdk) from 7.13.0 to 7.15.0.
- [Release notes](https://github.com/slackapi/node-slack-sdk/releases)
- [Commits](https://github.com/slackapi/node-slack-sdk/compare/@slack/web-api@7.13.0...@slack/web-api@7.15.0)

---
updated-dependencies:
- dependency-name: "@slack/web-api"
  dependency-version: 7.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Closes #141

Change-Id: I48d8059201a2ce2c9dff5ad23cfb8a4acd01a975
diff --git a/package-lock.json b/package-lock.json
index 7f9bd7b..4754cb9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.1.0",
       "license": "APACHE-2.0",
       "dependencies": {
-        "@slack/web-api": "^7.13.0",
+        "@slack/web-api": "^7.15.0",
         "axios": "^1.7.9",
         "chai": "^6.2.2",
         "form-data": "^4.0.5",
@@ -619,12 +619,12 @@
       }
     },
     "node_modules/@slack/logger": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/@slack/logger/-/logger-4.0.0.tgz",
-      "integrity": "sha512-Wz7QYfPAlG/DR+DfABddUZeNgoeY7d1J39OCR2jR+v7VBsB8ezulDK5szTnDDPDwLH5IWhLvXIHlCFZV7MSKgA==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@slack/logger/-/logger-4.0.1.tgz",
+      "integrity": "sha512-6cmdPrV/RYfd2U0mDGiMK8S7OJqpCTm7enMLRR3edccsPX8j7zXTLnaEF4fhxxJJTAIOil6+qZrnUPTuaLvwrQ==",
       "license": "MIT",
       "dependencies": {
-        "@types/node": ">=18.0.0"
+        "@types/node": ">=18"
       },
       "engines": {
         "node": ">= 18",
@@ -632,9 +632,9 @@
       }
     },
     "node_modules/@slack/types": {
-      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/@slack/types/-/types-2.18.0.tgz",
-      "integrity": "sha512-ZKrdeoppbM+3l2KKOi4/3oFYKCEwiW3dQfdHZDcecJ9rAmEqWPnARYmac9taZNitb0xnSgu6GOpHgwaKI8se2g==",
+      "version": "2.20.1",
+      "resolved": "https://registry.npmjs.org/@slack/types/-/types-2.20.1.tgz",
+      "integrity": "sha512-eWX2mdt1ktpn8+40iiMc404uGrih+2fxiky3zBcPjtXKj6HLRdYlmhrPkJi7JTJm8dpXR6BWVWEDBXtaWMKD6A==",
       "license": "MIT",
       "engines": {
         "node": ">= 12.13.0",
@@ -642,16 +642,16 @@
       }
     },
     "node_modules/@slack/web-api": {
-      "version": "7.13.0",
-      "resolved": "https://registry.npmjs.org/@slack/web-api/-/web-api-7.13.0.tgz",
-      "integrity": "sha512-ERcExbWrnkDN8ovoWWe6Wgt/usanj1dWUd18dJLpctUI4mlPS0nKt81Joh8VI+OPbNnY1lIilVt9gdMBD9U2ig==",
+      "version": "7.15.0",
+      "resolved": "https://registry.npmjs.org/@slack/web-api/-/web-api-7.15.0.tgz",
+      "integrity": "sha512-va7zYIt3QHG1x9M/jqXXRPFMoOVlVSSRHC5YH+DzKYsrz5xUKOA3lR4THsu/Zxha9N1jOndbKFKLtr0WOPW1Vw==",
       "license": "MIT",
       "dependencies": {
-        "@slack/logger": "^4.0.0",
-        "@slack/types": "^2.18.0",
-        "@types/node": ">=18.0.0",
+        "@slack/logger": "^4.0.1",
+        "@slack/types": "^2.20.1",
+        "@types/node": ">=18",
         "@types/retry": "0.12.0",
-        "axios": "^1.11.0",
+        "axios": "^1.13.5",
         "eventemitter3": "^5.0.1",
         "form-data": "^4.0.4",
         "is-electron": "2.2.2",
@@ -778,13 +778,13 @@
       "license": "MIT"
     },
     "node_modules/axios": {
-      "version": "1.12.2",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.12.2.tgz",
-      "integrity": "sha512-vMJzPewAlRyOgxV2dU0Cuz2O8zzzx9VYtbJOaBgXFeLc4IV/Eg50n4LowmehOOR61S8ZMpc2K5Sa7g6A4jfkUw==",
+      "version": "1.13.6",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.13.6.tgz",
+      "integrity": "sha512-ChTCHMouEe2kn713WHbQGcuYrr6fXTBiu460OTwWrWob16g1bXn4vtz07Ope7ewMozJAnEquLk5lWQWtBig9DQ==",
       "license": "MIT",
       "dependencies": {
-        "follow-redirects": "^1.15.6",
-        "form-data": "^4.0.4",
+        "follow-redirects": "^1.15.11",
+        "form-data": "^4.0.5",
         "proxy-from-env": "^1.1.0"
       }
     },
diff --git a/package.json b/package.json
index 739cdc2..3733794 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "author": "Marc Kupietz",
   "license": "APACHE-2.0",
   "dependencies": {
-    "@slack/web-api": "^7.13.0",
+    "@slack/web-api": "^7.15.0",
     "axios": "^1.7.9",
     "chai": "^6.2.2",
     "form-data": "^4.0.5",