Update reference-analysis-tools-strings.yml

fix 2 problems:

1. fix false positive by not hitting, if there was a word character before `ida`:
```
regex: /ida[gqtuw]?(\.exe)?$/i
- "@.didat" @ file+0x2F7

405d4c2ef7419bf265edef0fe86c8ba1ed634b10dccaaa0a6c6b953645598619
```

2. regex didn't match ida64.exe because it required one of the characters in the brackets.

anti-analysis/reference-analysis-tools-strings.yml

@@ -24,8 +24,8 @@ rule:
       - string: /procmon(\.exe)?/i
       - string: /regmon(\.exe)?/i
       - string: /procexp(\.exe)?/i
-      - string: /ida[gqtuw]?(\.exe)?$/i
-      - string: /ida[gqtuw]64(\.exe)?$/i
+      - string: /(?<!\w)ida[gqtuw]?(\.exe)?$/i
+      - string: /ida[gqtuw]?64(\.exe)?$/i
       - string: /ImmunityDebugger(\.exe)?/i
       - string: /Wireshark(\.exe)?/i
       - string: /dumpcap(\.exe)?/i