Update pandas requirement from ~=1.4.2 to ~=1.4.4 in /api

Updates the requirements on [pandas](https://github.com/pandas-dev/pandas) to permit the latest version.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Changelog](https://github.com/pandas-dev/pandas/blob/main/RELEASE.md)
- [Commits](https://github.com/pandas-dev/pandas/compare/v1.4.2...v1.4.4)

---
updated-dependencies:
- dependency-name: pandas
  dependency-type: direct:production
...

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

.github/dependabot.yml

@@ -10,8 +10,6 @@ updates:
     directory: "/api"
     schedule:
       interval: "daily"
-    assignees:
-      - "H4CK3R-01"
     open-pull-requests-limit: 100
 
   # Bot
@@ -19,10 +17,6 @@ updates:
     directory: "/telegram_bot"
     schedule:
       interval: "daily"
-    assignees:
-      - "NormalParameter"
-      - "Rripped"
-      - "FlorianKellermann"
     open-pull-requests-limit: 100
   
   # Frontend
@@ -30,6 +24,4 @@ updates:
     directory: "/frontend"
     schedule:
       interval: "daily"
-    assignees:
-      - "kevinpauer"
     open-pull-requests-limit: 100

api/requirements.txt

@@ -14,5 +14,5 @@ marshmallow~=3.15.0
 faker~=13.11.0
 requests~=2.27.1
 investpy~=1.0.8
-pandas~=1.4.2
+pandas~=1.4.4
 currencyconverter~=0.16.12

telegram_bot/bot_updates.py

@@ -149,7 +149,6 @@ def update_for_user(p_user_id, p_my_handler):
     
     shares = p_my_handler.get_user_shares(p_user_id) # all interest shares
     
-    if shares!=None
     if len(share_symbols) != 0: # iterate through all shares
 
         for i in range(len(share_symbols)):